The status of Buffalo Bills wide receiver Sammy Watkins is up in the air heading into Sunday's game against the Kansas City Chiefs.

Previous reports indicated that Watkins would be ready to play despite being forced to leave Wednesday's practice with a groin injury, but the rookie wideout also missed Thursday's session.

Bills head coach Doug Marrone did little to clarify Watkins' status after practice:

Marrone on Watkins: "There are a lot of sources and reports out on it. I'm just going to stick with the injury report." Watkins DNP today. — Mike Rodak (@mikerodak) November 6, 2014

Friday's practice will likely be the true indicator of whether or not Watkins can play Sunday, but going without him against a tough Chiefs defense would be a significant loss for a Bills team already missing some of its top playmakers.