Dereck Lively II was listed as doubtful for Game 4 against the Minnesota Timberwolves due to a sprained neck.
Lively was cleared from having a serious injury and has not entered the league's concussion protocol.
Maxi Kleber, who has not played since the first round due to a separated right shoulder, is questionable for the game.
The Mavs lead the series 3-0.