According to Anthony Slater, Steven Adams could not finish Thursday's game against the Chicago Bulls due to soreness in his back. Adams left the Bulls game with 3:20 to go in the third quarter, and did not appear to be in any visible pain. Back soreness has been an issue for Adams this season. Back on October 7th, Adams sat out the Thunder's pre-season opener against the Minnesota Timberwolves.
Currently, Adams is averaging six points and six rebounds in 26 minutes a game. We won't know whether Adams will miss any time until tomorrow's practice. If Adams were to sit out on Monday against the Suns, Enes Kanter would almost certainly start in his place. The Thunder have no true backup center, so Serge Ibaka would likely see an increase in minutes as a result. Anthony Morrow, Kyle Singler, and Nick Collison could all see additional time as well. As a team, the Adams-less Thunder will certainly be playing smaller lineups in general.