Kenyan Drake’s preseason is likely done, and the running back’s availability for the opener is in some doubt after sustaining a foot injury during Tuesday’s practice.

Drake was held out Wednesday, watching the Dolphins’ and Buccaneers’ joint practice from the sideline with his right foot in a walking boot.

“We take things day to day here,” Dolphins coach Brian Flores said, when asked if Drake will be ready for Week 1. “The opener is down the road. He’s got a little injury. He’s just going to take it day to day. He’s got a great attitude about it. I think he’ll be OK.”

To play again in the preseason, Drake would need to make a dramatic recovery in less than a week. The Dolphins’ third exhibition game is Aug. 21, and few teams play their top guys in the fourth game.

Drake’s injury added to a growing list of big-name Dolphins who are sidelined this summer.