"He's gonna go," coach Avery Johnson said in his pregame news conference. "He's feeling pretty good."
Harris had missed the previous two games with a left knee sprain. He suffered the injury during the third quarter of Monday night's game against the New York Knicks after teammate Kris Humphries landed on his knee.
Johnson, who was watching Harris' lateral movement closely, said he was unsure if Harris would play "38 minutes" Sunday.
"We'll have to see how he's feeling," Johnson said.
The 27-year-old Harris was averaging 17.7 points and 6.6 assists in 31.7 minutes.
Backup Jordan Farmar had replaced Harris in the starting unit and performed well, averaging 22 points and 9.5 assists in his absence.
Mike Mazzeo is a regular contributor to ESPNNewYork.com.