Rockies catcher Wilin Rosario will find out biopsy results Friday on what he called a “water fungus” on his arms.

Rosario said it has not affected his play, but he became concerned when the issues with his skin spread and continued to linger.

“I’m not going to worry about it. All I can do is wait to hear what they say,” Rosario said. “There’s nothing else I can do right now.”

Rosario, who’s hitting .239 this season with 10 home runs and 32 RBI, has been wearing a protective sleeve on his right arm recently as a result of the skin irritation.