A crowded backfield can quickly diminish a running back's Fantasy value. And before you try and determine which running back will receive the bulk of the carries moving forward, you need to see SportsLine Fantasy analyst Matt Franciscovich's breakdown of some of the most fluid running back committees heading into Week 13. 

Franciscovich, spent four seasons at NFL Network as on-camera talent and as a writer/editor, appearing on NFL Fantasy Live, Fantasy & Friends, and NFL Pick'Em. You might remember him best as one of the 'Fantasy Hipsters,' a segment that was nominated for FSWA "Best Video" award in 2016. He's also a featured contributor of the Fantasy Football Black Book, which has spent ample time at No. 1 in Fantasy books on Amazon in 2018 and 2019. Now, Franciscovich is a Content Strategist at EA Sports, focusing on Madden NFL, while continuing to dish out Fantasy takes for SportsLine. He has years of experience handing out league-winning advice, so if there's anybody who can help you win your league, it's him. 

One thing we can tell you heading into Week 13: Franciscovich says Colts running back Jonathan Williams is a high-end flex option against the Titans. 

"With Marlon Mack out in Week 12, it was Jonathan Williams who was named starter and he produced for fantasy owners against the Texans," Franciscovich said. "Williams posted an impressive 26-104-1 line on the ground last Thursday night, adding three receptions for 17 yards… The Colts are home favorites in Week 13 against a hot Titans team that just dismantled the Jaguars. While it's not the most favorable matchup for Williams against a defense that allows the 12th-most FPPG to opposing backs, Williams' volume upside alone makes him a worthy high-end flex."

Franciscovich has also identified another running back who looks poised for a bounce-back and has made the call on what owners should do with San Francisco's crowded backfield.

So which running backs can you trust in Week 13? And which running back's arrow is pointing up heading into Week 13? ... Join SportsLine now to see Matt Franciscovich's analysis, all from one of the top Fantasy football analysts in the nation!