Detroit Lions head coach Jim Schwartz has admitted that wide receiver Calvin Johnson suffered soreness in his knee following his side's win over the Cleveland Browns.

The All-Pro was limited in the game to just 38 out of a possible 74 snaps on his side's offense and caught just three passes for 25 yards.

"He was sore after the game but he's been sore after practice," Schwartz told the Detroit Free Press. "It's too soon to really know if it was any worse."

The Lions moved to 4-2 in their season with their win over the Browns.