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05/27/09 2:16 PM ET

Doumit to undergo wrist examination

Thursday CT scan will determine when catcher begins rehab

CHICAGO -- While the Pirates enjoy a day off on Thursday, their first since May 11, catcher Ryan Doumit will undergo a CT scan on his right wrist.

After suffering a minimally displaced fracture of the scaphoid bone in his wrist on April 12, Doumit had pins inserted into his wrist during his April 16 surgery. The pins were put in to pull the bone back together.

Thursday's CT scan, which comes six weeks after the surgery, will give the Pirates a better indication of how quickly the bone has healed and an idea of how strong the bone is. It will also help the club determine when Doumit can begin his rehab progression.

Initial estimates had Doumit out for eight-to-10 weeks. At this point, though, Doumit's return is most likely to fall in the high part of the range as the Pirates intend to be cautious with his road back to the playing field.

"He's a huge part of our organization," manager John Russell said. "We don't want this to linger. That's why he had the surgery. If it didn't heal properly, it could affect the rest of his career. We want to make sure it's not an issue for him three years down the road.

"It's something we have to be careful with," he added. "We want him back, not only for the second half of the season, but we want him back next year and the next year. We don't want this thing to linger, so we want this thing to heal like it's supposed to."

Somewhat mitigating the blow of losing their starting catcher is the fact that the Pirates have at least gotten decent production from their backup backstops. Heading into Wednesday's game at Wrigley Field, Jason Jaramillo and Robinzon Diaz, who are sharing the catching duties fairly equally, had combined to reach base in 17 straight games.

During Doumit's absence, the two have combined to hit .308.

Jenifer Langosch is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.