Bulls head coach Billy Donovan said after Saturday's loss to the Heat that Caruso asked to come out in the third quarter due to back spasms, K.C. Johnson of NBC Sports Chicago reports.
Caruso started the game, but he only played 22 minutes -- his fewest since Dec. 20 -- and was held scoreless. Donovan added that Caruso's back issues have become a "problem" but it's nothing long-term. The coach also said he'll look to limit the veteran's playing time to less than 28 minutes moving forward, and it's certainly possible that the Bulls opt to sit him out for a contest or two during the stretch run to make sure he's as close to 100 percent as possible for the playoffs.