Tim Duncan tweaked his left knee in San Antonio's win over Golden State on Monday night.

The sight of Duncan laying on the floor, clutching his knee was a scary one for the Spurs.

"Bad, bad memories," Tony Parker said. "I thought something was seriously wrong with his knee."

It turned out to be fine as Duncan returned without a problem in the second half.

He finished with 16 points and seven rebounds in the 113-102 win.