Eduardo Nunez caught a lot of ribbing from his teammates after he snagged his spike in a seam in the turf at Rogers Centre Tuesday night. But the twisted right knee Nunez suffered may turn out to be no laughing matter.

When Nunez tried to run in batting practice before the Yankees’ 7-2 loss to Toronto Wednesday night pain flared up in his knee again and he was scratched from the lineup. Now he’s got a date with an MRI tube Thursday and the infielder is worried that he’s hurt badly enough that he could miss a few weeks.

And that’s not the only issue the Yankees have at second base where Mark Reynolds of all people is currently their only healthy player. Nunez was supposed to start at second Wednesday in place of Robinson Cano whose bruised left hand improved but not enough for him to play. Cano is hopeful he can play Friday but acknowledged that he won’t know for sure until he takes batting practice then.