Even though center fielder Adam Jones is sidelined with an ankle injury, Trembley said the club will not be promoting an outfielder, saying Fiorentino, Luke Scott and Robert Andino could play in the outfield.
Trembley, however, wanted a third catcher, to give him more flexibility in pinch-hit situations and to help with all of the extra arms in the bullpen.
Rodriguez, 31, played in 39 games with the San Francisco Giants in 2007. McCrory, 27, pitched in three games with the Orioles this year and Waters, 29, started 11 games for the Orioles in 2008. Turner, 24, would be making his big league debut.
Passing on free passes
There are theories, but neither right fielder Nick Markakis nor Trembley knows exactly why Markakis has experienced such a drastic decline in walks this year. He has 44 walks this season compared to 99 in 2008.
"I can't explain it," Markakis said. "It's hard to know why. Maybe the pitchers are around the plate more. I could be swinging at more pitches. But overall, I couldn't tell you why. I feel the same up there. I feel like I've been taking the same approach."
Trembley noted how Markakis has "hit a lot earlier in the count this year than he did last year." The manager also said Markakis hasn't had "adequate protection" in the order, and has shown a tendency to open up his strike zone to adjust to the umpire's strike zone.
Markakis is fourth on the team in walks, two behind Nolan Reimold, who didn't make his big league debut this season until May 14.
"If the ball's around the zone, I'm going to swing," Markakis said. "I'm swinging the bat more, putting more balls in play. If I wasn't hitting or putting balls in play, then I'd start worrying. It evens out. As long as you get on base, it doesn't really matter how you get there."
Around the horn
Brian Roberts batted leadoff Sunday after hitting third the previous two games. Trembley said he may use Roberts, his normal leadoff hitter, at third again this season if necessary. ... The Orioles hadn't won a series finale at home against the American League West until Sunday's victory over the Rangers. They were 0-6 at home and 2-8 in series finales overall against the AL West.
Baltimore Sun reporter Jeff Zrebiec contributed to this article.
