Martinez, 27, will be in uniform and available for tonight’s game in Seattle, seeking to make his Texas debut. He has spent the entire season with Round Rock, batting .262 (43-164) with 2 home runs, 10 doubles, 2 triples, 17 RBI, and 22 runs in 50 games. The right-handed batter has hit .304 (14-46) against left-handed pitchers. He has caught 10 of 47 (21.3%) attempted base stealers in the Pacific Coast League with a .987 (4 E/315 TC) fielding percentage in his team-high 50 games behind the plate for the Express. Acquired in a December 21 trade with San Diego, Martinez saw his only major league action with the Padres in 2011, when he batted .203 with a home run and 10 RBI in 22 games.
Tateyama has made 4 appearances with Texas since his most recent recall on June 29. He is 1-0 with an 11.37 ERA (16 ER/12.2 IP) in 11 overall relief outings with the Rangers in 2012. He has spent the balance of the season with Round Rock.
With these moves, the Rangers still have a full 40-man roster.