Miami Dolphins running back Kenyan Drake is in a walking boot for the start of Wednesday’s practice according to Cameron Wolfe of ESPN.

Drake left practice early on Tuesday, but the team hasn’t confirmed exactly what type of injury Drake is dealing with, or how long he might be out. After Tuesday’s practice, coach Brian Flores didn’t seem too concerned with the injury, saying there was hope he could be back for Wednesday’s practice.

“Hopefully it’s not too serious,” Flores said via the Palm Beach Post. “Hopefully he’s back out there tomorrow.”

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Coming into training camp, the expectation was that Drake would be the starting running back this season, but he might have already lost out on that job. In the first preseason game, Drake ran the ball four times for 12 yards while his backfield mate Kallen Ballage rushed six times for 23 yards and a touchdown.

If Drake does lose out on the starting job, it would be the same story as the last few years. The talk heading into training camp is he will be the starter, then someone comes in and steals his carries.

Last season Drake did still have a good year, rushing for 120 yards for 535 yards and four touchdowns. Hopefully, Flores is right and this isn’t a serious injury and the walking boot is just a precaution. Look for more questions to be asked of Flores about the injury the next time that they have a media briefing.