Good news here for the first-place Royals — I just like saying that — as Andy McCullough of the Kansas City Star reports that an MRI on Salvador Perez‘s right knee revealed no structural damage.

Perez left Monday’s game after he tweaked the patella tendon in his knee while running the bases. He managed to return to the lineup on Tuesday and went 1-for-5 with an RBI double, but he was scratched yesterday due to renewed tightness in the knee.