© 2009 MLB Advanced Media, L.P. All rights reserved.

05/25/09 7:15 PM ET

Pudge day-to-day with sprained knee

Astros catcher insists he will be ready to play Tuesday

CINCINNATI -- Head athletic trainer Nate Lucero and manager Cecil Cooper made their way to the mound in the bottom of the first inning on Monday, which usually indicates a possible injury to the pitcher.

But the two were clearly having a conversation with catcher Pudge Rodriguez, not Wandy Rodriguez, so it came as no surprise when Humberto Quintero took over behind the plate in the next frame.

Rodriguez left the game with a sprained left knee, and his status is currently day-to-day. Rodriguez insisted he would be back on the field Tuesday.

"I'll be playing tomorrow, no matter what," he said.

Rodriguez suffered the injury after his knee twisted awkwardly while he was attempting to tag Adam Rosales on a play at the plate in the first inning.

"It wasn't [Rosales], I just got caught in the wrong place," Rodriguez said. "I went down, and my knee went the wrong way. I went to tag him, and my left knee got stuck. I felt a little pop in my inside knee, in the back."

When he resumed his crouch position behind the plate, Rodriguez felt pain in the knee area. He communicated that with Cooper while also insisting he could continue playing, but Cooper decided to take the safe route and remove the veteran catcher from the eventual 8-5 loss.

"Cooper told me, 'Just go in and don't take any chances,'" Rodriguez said. "I could have gone back and played, but he told me to take it easy. He said he's going to need me to help for the season. I'll be OK tomorrow. For sure, tomorrow."

Cooper indicated that infielder Edwin Maysonet could be used as a catcher in an emergency situation. Geoff Blum, another catching option, is sidelined with a strained hamstring.

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