ASK THE EXPERTS appears weekly from training camp to Super Bowl with answers to a new question being posted Thursday morning. How the guest experts responded when we asked them: Which struggling star should fantasy owners simply give up on?

SCOTT SACHS

I have never ever recommended drafting Ryan Mathews. He should be entering his prime, yet he is arguably amongst the most over-hyped under-achievers in the NFL, with diminishing TD production year over year, with just 1 score in 12 games in 2012. Since he was a "beast" during the 2013 preseason, added to the fact that it's a woeful gene pool of clear No. 1 RBs this year, many owners once again hitched their wagons to him as a No. 1 or 2 RB option. As usual, he has gone from "beast" to "least", recently dropping the rock again in a goal line situation. Someone will take him in trade as he has 1 TD this year on a pass play -- matching last year's total.

Sachs runs Perfect Season Fantasy Football, offering LIVE Talk/Text/Email consulting & advice. Winner of Fantasy Football Index's 2012 Experts Poll & 2011 Mock Auction League, Scott can be found at http://perfectseasonffb.com/.

SCOTT PIANOWSKI

Garbage-time production has bailed out Robert Griffin through two weeks, though his efficiency numbers are a mess and he's reluctant to run. If the mobility doesn't return in full, this is a completely different player than we saw in 2012. I'd try to sell his misleading numbers now, while the selling is good. I don't think much of Washington's receiving group, either - only Pierre Garcon looks like a plus player, and he seems to get hurt every year.

Pianowski has been playing fantasy football for 20 years and writing about it for 17. He joined Yahoo! Sports in 2008 and has been blogging 24/7 on RotoArcade.com ever since.

MIKE NAZAREK

It's really not looking good for MJD in Jacksonville. Even before his ankle injury, he wasn't seeing any room to run and had caught just one pass in six quarters. I'd bail on him now if I could get a decent No. 3 WR for him.

Nazarek is the CEO of Fantasy Football Mastermind Inc. His company offers a preseason draft guide, customizable cheat sheets, a multi-use fantasy drafting program including auction values, weekly in-season fantasy newsletters, injury reports and free NFL news (updated daily) at its web site. He has been playing fantasy football since 1988 and is a four-peat champion of the SI.com Experts Fantasy League, a nationally published writer in several fantasy magazines and a former columnist for SI.com. For more info go to www.ffmastermind.com. Nazarek can be reached via email at miken@ffmastermind.com.

TIM HEANEY

If I owned Arian Foster anywhere, I'd be happy that he scored a touchdown last week. It'd juice his value for me trying to sell him. Ben Tate will be a constant, nagging force all season in that backfield. People drafted him based on a presumed domination over touches, and that'll likely be in question all year. So will his health and offensive line. It'd probably take a special circumstance to sell him, but someone in your league will probably pay for the past while ignoring the risks of the future.

Since 1996, KFFL.com has been combining its award-winning news service with fantasy analysis. KFFL.com offers services including daily news, draft guides and in-season advice. Completely free, KFFL.com is your destination for fantasy baseball, football and NASCAR cheat sheets, tips, sleepers and much more. KFFL.com has won more than a dozen expert championships and was listed as "One of the 10 essential sports-related online destinations for fans, athletes and fantasy owners" by Time.com. KFFL.com is property of USA TODAY Sports Media Group.

DAVID DOREY

Probably time to bail on Maurice Jones-Drew who was touted as being back to form and ready for the season. His Lis Franc surgery was supposed a success and he was 100%. The reality is that he may never be 100% again, his offense is so bad that even he cannot turn it around and they will continue to find themselves in bad situations that mean rushing the ball is just not an option much anyway.

Dorey is the co-founder and lead NFL analyst for The Huddle and author of Fantasy Football: The Next Level. He has projected and predicted every NFL game and player performance since 1997 and has appeared in numerous magazines, newspapers, radio and television.

BOB HENRY

Ben Roethlisberger. One might argue whether Roethlisberger is a "star", but he has produced QB1 numbers throughout the last several years when healthy. Unfortunately, he's running up a muddy hill this year. The offensive line has been awful. The running game exacerbates the problem. Le'Veon Bell may not be back until Week 6 and there is no guarantee his presence will help. Roethlisberger's mobility has been sapped by injuries/age and he doesn't look comfortable in Todd Haley's offensive scheme. The Steelers need to incorporate rookie Marcus Wheaton more into the offense and that could help Roethlisberger's cause, but unlike in years past, I don't see Roethlisberger providing anywhere near low QB1 value. He looks like a mid-QB2 at best and probably a low-end QB2 going forward. There are several other players that succumbed to injury this week like Steven Jackson, Ray Rice and Maurice Jones-Drew. You could easily replace Roethlisberger with any of them and also make a legitimate case.

Henry is a senior writer/analyst for Footballguys.com since 2004 and an industry veteran of 17+ years. His responsibilities at Footballguys include leading the annual training camp reports, providing detailed preseason and year-forward projections during the season that help drive the Footballguys suite of mobile, web and desktop draft and in-season management tools, along with managing the depth charts and his popular weekly Sleepers column during the season.

SAM HENDRICKS

Maurice Jones-Drew for multiple reasons. The Jacksonville QB situation is in constant transition this year and that never helps the running game. The Jaguars have one of the worst defenses, if not the worst, in the league (my apologies to WAS if you were trying for that title this year) so MJD will not get too many rushes in garbage time. And finally, I do not know if MJD had fully recovered from his 2012 injury and now he has "ankle looseness" whatever the heck that is. Move on and forget about him.

Hendricks is the author of Fantasy Football Guidebook, Fantasy Football Tips and Fantasy Football Basics, all available at ExtraPointPress.com, at all major bookstores, and at Amazon and BN.com. He is a 20-plus year fantasy football veteran who regularly participates in the National Fantasy Football Championship (NFFC) and finished 7th and 16th overall (out of 228 competitors) in the 2008 and 2009 Fantasy Football Players Championship (FFPC). Follow him at his web site, www.ffguidebook.com.

ALAN SATTERLEE

To me, Maurice Jones-Drew is simply a pick gone bad if you have him. I don't see him turning it around this season health-wise and if he does Jacksonville is a mess. I would look to ship Maurice Jones-Drew for say Josh Gordon before he blows up.

Satterlee is Co-Owner and Chief Editor/COO of FantasyFootballWarehouse.com. FFW features comprehensive profiles for all the major 2013 skill-position rookies, its Trading Spaces series, the team Deep Dives, the Speed Bump competition plus draft strategies, rankings, projections and more. FFW runs in tandem with its dynasty site DynastyFootballWarehouse.com.

ERIC CATURIA

A number of historically fantasy-friendly quarterback options have disappointed their owners at varying levels to date, namely Tom Brady, Cam Newton, Russell Wilson, and Tony Romo. Either an easier slate (all four) or the upcoming return of an incomparable position player (see: Rob Gronkowski) are poised to aid in each signal caller's recovery, but a certain QB will not be afforded that luxury: Ben Roethlisberger. Big Ben, as he's aptly called, seemingly has the deck stacked against him this year due to his top downfield threat (Mike Wallace) bolting to South Beach during free agency; this year's second-round pick, running back Le'Veon Bell, sustaining a mid-foot sprain in the second preseason tilt; and arguably the league's preeminent center, Maurkice Pouncey, missing the remainder of the season due to ACL and MCL tears suffered in Week 1. The latter development leaves a typically precarious offensive line in tatters, while an underwhelming rushing "attack" led by a trio of Felix Jones, Isaac Redman, and Jonathan Dwyer in the near term essentially forces the Steelers to roll with an aerial assault. Along with receivers Antonio Brown and Emmanuel Sanders, Roethlisberger will soon have an old reliable, Heath Miller (knee), at his disposal, but an adequate passing attack may not be attainable without the opposition respecting the blocking scheme and, by proxy, the running game. As such, Roethlisberger may rack up a fair amount of garbage yardage, but an unbalanced offense will more than likely keep his touchdown production near his career low of 17 touchdowns, which he's achieved in four of his nine campaigns. A cellar-dwelling squad could be in the cards for those owners who fail to jettison Pittsburgh's quarterback for his going rate after two weeks.

Caturia is a writer/editor of NFL, MLB, and NBA content for RotoWire. He can be found on Twitter @etcat30.

ANDY RICHARDSON

My attention, or pity, is drawn by the NFC South. The Bucs look like they're going to be a struggling, back-stabbing disaster, and although Doug Martin comes off a 144-yard performance against the Saints, to me it looks like a great time to ship him off while his value is still high. It's going to get bad there this year, and Martin will have some big games but touchdowns will be few and far between. Next up is Cam Newton, who just seems to be struggling out there. I don't think he'll put up reliable numbers this season.

Richardson has been a columnist and contributor to the Fantasy Football Index magazine and web site for 12 years. His responsibilities include team defense and IDP projections and various site features, and he has run the magazine's annual draft and auction leagues since their inception. He previews all the NFL games on Saturdays and writes a wrap-up column on Mondays during the NFL season.