Dirk Nowitzki left the Mavericks' win over the Thunder on Monday night in the second quarter with a sore right knee.

He scored 13 points before leaving with 9:10 left in the first half.

Nowitzki said after the game that he was day-to-day. He will have an MRI exam on his right knee Tuesday morning. X-rays on his right knee were negative.

"You hate to see the big German go down," Jason Terry said. "But we saw him at halftime and he was smiling. He told us, 'No problem. You guys got this."