After firing coach Jacque Vaughn, the Brooklyn Nets are promoting assistant Kevin Ollie to interim head coach, sources told ESPN.

Ollie will run the Nets’ practice on Tuesday and start his head-coaching duties on Thursday against the Toronto Raptors, sources said. The Nets have 28 regular-season games left.

The Nets’ hopes are that Ollie can re-energize a roster that has dropped into the bottom 10 in offensive and defensive efficiency since mid-December. Ollie — who played 13 seasons in the NBA — won a national championship as UConn’s coach in 2014 and joined the Nets as an assistant coach this season.