The Buffalo Bills are facing a bit of uncertainty in the running back position with the whole LeSean McCoy situation hanging over their heads. Perhaps that could influence their decision to add another running back to the roster.

According to Mike Rodak of ESPN, the Bills have shown interest in bringing in former Chargers and University of Buffalo running back Branden Oliver for a workout. Although, Rodak clarifies that nothing’s been confirmed as of yet.

Rodak also notes that the Bills had had interest in Oliver even before the McCoy story suddenly exploding this week.

Oliver, 27, is a 5-foot-7 back who went undrafted out of Buffalo in 2014. He caught on with the Chargers, where he’s spent the past four years. He had a strong rookie season where he had 853 yards from scrimmage and four total touchdowns in 14 games (seven starts).

However, his last two season have been shortened due to injury. He missed eight games in 2015 due to a foot injury. And he missed the entire 2016 season after suffering a torn Achilles. Oliver returned last season, where he had just 35 carries for 83 yards in eight games with LA as Melvin Gordon got majority of the touches in the Chargers backfield.

Aside from McCoy, the Bills have Chris Ivory, Travaris Cadet, and Marcus Murphy as their other running back options currently on the roster. Barring any other signings, Ivory is expected to be the first option take over as the starter for the Bills in case McCoy is unable to play.