Backup catcher Chris Stewart doesn't figure to get a whole lot of playing time this year, but much of what he does get will likely be with Brandon McCarthy on the mound.

They worked together in the White Sox farm system before being acquired in separate trades this winter by the Rangers. They also worked together in McCarthy's last start, when the right-hander allowed two runs in six innings to get his first victory with the Rangers.

"We just know each other and have a pretty good idea of what we're trying to do," Stewart said. "The main thing is he's not afraid of attacking hitters and throwing strikes."

Rangers manager Ron Washington is planning to pair the two up again on Sunday when McCarthy takes the mound against the Seattle Mariners at Safeco Field. Washington said it won't be automatic that Stewart catches McCarthy, but the manager likes the way they work together.

"Anytime I get in there, I'm going to relish it and go with it," Stewart said. "But when a guy is really comfortable throwing to me, I take a lot of pride in that."

Stewart was 1-for-3 in that game with an RBI single that was his first Major League hit. He also threw out one of two baserunners trying to steal off him.

Pitching matchup
TEX: RHP Brandon McCarthy (1-1, 3.75 ERA)
McCarthy held Tampa Bay to two runs in six innings to win his home debut on Monday. McCarthy has faced Seattle twice in his career, going 0-1 with a 4.91 ERA in two relief appearances for the White Sox. His only outing at Safeco Field lasted just two-thirds of an inning, with McCarthy surrendering one run on two hits. Mariners first baseman Richie Sexson has one home run in two at-bats against McCarthy. McCarthy is now 4-4 with a 4.15 ERA in his 13 career Major League starts.

SEA: LHP Horacio Ramirez (5-5, 4.48 ERA in 2006)
Ramirez was snowed out after four innings in his previous start, and the weather should be much better this time. His regular-season debut in Cleveland was an outing the lefty won't soon forget. The cold weather caused him to blow almost incessantly on his left hand, three errors behind him made things worse and four snow delays at Jacobs Field turned what could have been a festive Opening Day into a winter wonderland afternoon and evening. Ramirez walked six batters, including three in the first innings, but the postponement wiped out all the stats.

Player to watch
Sunday would be a good day for Sammy Sosa to get rolling. He is 2-for-5 with a home run in his career against Ramirez.

On the Internet
 MLB.TV
 Gameday Audio
•  Gameday
•  Official game notes

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Up next
• Monday: Off-day
• Tuesday: Texas (RHP Robinson Tejeda, 1-1, 4.50) at Chicago (RHP Jon Garland, 0-0, 3.65), 7:11 p.m. CT
• Wednesday: Texas (RHP Kevin Millwood, 2-1, 3.71) at Chicago (LHP Mark Buehrle, 0-0, 4.32), 7:11 p.m. CT