Carroll suffered his injury after being called for an offensive foul on a drive to the rim. After going down, he clutched his left wrist and was eventually escorted off the court and into the locker room by the team trainer.
The Raptors announced Thursday that tests taken after the game were negative. Carroll's left wrist contusion will be treated symptomatically, and he is questionable for Game 6 on Friday at AmericanAirlines Arena.
It was unclear how Deng suffered his injury. X-rays were inconclusive, and he will have an MRI on Thursday to determine the extent of the injury.
"Right now we're just being smart," Deng said. "I have to know what it is. As long as it's nothing serious, I will be out there Friday [for Game 6]."
Carroll has averaged 9.7 points, 4.1 rebounds, 1.2 steals and 31.5 minutes in 12 playoff games this season. In five games against the Heat in the Eastern Conference semifinals, he has averaged 11.2 points, 4.6 rebounds, 1.4 steals and 35.7 minutes in five contests.
Both teams were already without their starting centers because of injuries. The Raptors' Jonas Valanciunas is out for the rest of the series with a right ankle sprain, and the Heat's Hassan Whiteside is day-to-day with a right MCL sprain and missed Games 4 and 5.
Whiteside will continue to get rest and rehab through Friday.
Raptors guard DeMar DeRozan aggravated his right thumb injury early in the fourth quarter and went to the locker room but returned.
ESPN's Michael Wallace contributed to this report.