The Saints worked out some running backs on Thursday, including Fozzy Whittaker, Robert Kelley, and Buck Allen (Twitter link via Josh Katzenstein of The Times-Picayune). All three vets are looking for a spot on the roster to backup top rushers Alvin Kamara and Lavavius Murray. 
Whittaker, 30, has spent the last five years with the Panthers, but lost his 2018 season to a torn ACL. For the most part, he was used as a reserve option and a third-down running back. He saw the most usage of his career in 2016 when he carried the ball 57 times and averaged an impressive 4.6 yards per try in that limited sample. In 2017, however, he had just seven carries in 12 games.
Kelley only suited up for two games with the Redskins last year thanks to a toe injury. Kelley averaged 4.2 yards per carry as a rookie in 2016, but has been unable to replicate that production.
Allen, meanwhile, saw time in 14 games for the Ravens last year, but averaged just 2.7 yards per rushing attempt. The former fourth-round pick had some moments early on in his career – including his 12 catches for 107 receiving yards against the Dolphins in 2015 – but has never topped the 4.0 YPC mark in any of his four NFL seasons.
Devine Ozigbo is the real deal.