CINCINNATI -- The Reds placed right fielder Nick Castellanos on the 10-day injured list on Friday, a week after he was hit on the right wrist by a pitch against the Brewers. Save for one inning on Monday in an extra-innings loss to the Mets, Castellanos did not appeared in a game after the HBP.

Castellanos revealed that he has a microfracture in his wrist on Wednesday, a day before MLB.com's Jon Paul Morosi reported that the Reds All-Star could be out for a couple of weeks.

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“So, I got a CAT scan today. I have a microfracture in my wrist that I'm dealing with,” Castellanos told Jomboy Media’s Chris Rose. “So yeah, I’ve got to rest it.”

During Monday’s 15-11 loss to the Mets, Castellanos was pressed into service to play right field in the top of the 11th inning and batted in the bottom half. Not swinging at full strength, he hit a fly ball to the warning track in right field, just missing a home run.

Reds manager David Bell did not want to use Castellanos as a bench option as a precaution and not make the injury worse.

During the third inning of Cincinnati's July 16 game vs. the Brewers, Castellanos was plunked on his wrist by a 94 mph sinker from pitcher Adrian Houser. He remained in the game and scored on Eugenio Suárez’s two-run double but exited the game before the top of the fourth inning.

When Castellanos underwent X-rays during that game, it was negative for a fracture, and he returned to the bench to watch the rest of that game.

“If anybody can pop my wrist off and just like pop it back in, I think it would feel better,” Castellanos said.

Castellanos has excelled in his second season with the Reds, posting a .329 average with 29 doubles, 18 home runs and 59 RBIs in 86 games.