Al Jefferson tweaked his back going for a rebound near the end of Wednesday's win against Orlando and collapsed in a heap on the court before being helped to the locker room by a trainer and teammate.
Russell Westbrook made 5-of-19 from the field for 14 points during a 124-92 loss to the Spurs on Saturday, adding two rebounds, nine assists, two steals and two turnovers.
Serge Ibaka scored 19 points with two rebounds, one steal and three 3-pointers in 29 minutes against the Spurs on Saturday.
Coach Steve Kerr said Stephen Curry (knee) doesn't have much of a chance to play in Game 2 on Tuesday.
An MRI on Josh Richardson's left shoulder was negative and he will be a game-time decision for Game 7 on Sunday.
Nicolas Batum (left foot strain) is questionable to play against the Heat in Game 7 on Sunday.
Enes Kanter (chest) will play in Game 1 vs. the Spurs on Saturday.
Marc Gasol's rehab from a fractured right foot is "on schedule."
Paul Pierce said he is "50-50" on whether or not he will retire.
Jarrett Jack (knee surgery) is expected to be cleared for basketball activities in about a month and a half.
Damian Lillard scored 28 points in a series-clinching 106-103 win over the Clippers on Friday, adding five rebounds, seven assists, one steal and four 3-pointers.
Austin Rivers needed 11 stitches after an Al-Farouq Aminu elbow to his face during a season-ending loss to the Blazers on Friday, finishing with 21 points, six rebounds, eight assists, one steal and one 3-pointer.