Grayson Allen's sprained ankle is more severe than the Milwaukee Bucks expected, according to Mike Budenholzer.

Allen, who suffered the injury on Sunday against the Sixers, is expected to miss the rest of the regular season with the hope he can return for the playoffs.

"That gives us seven to 10 days to see how he's doing. There's a lot that can happen in that time frame, so we'll hope for the positive," said Budenholzer.

Khris Middleton may also miss the rest of the regular season due to right knee soreness. 

The Bucks clinched the best record in the NBA on Wednesday.