The Astros have signed four pretty decent players to minor league contracts to add depth. 28 year old righty swinging catcher J.R. House played with the Orioles last season. He played in 19 games last year and he was 8 for 38 (.211 avg, .768 OPS) with 5 runs scored, 3 homers and 3 RBIs. House has now played in 29 games in his major league career and he is 10 for 57 (.175 avg, .603 OPS) with 6 runs scored, 3 homers and 3 RBIs. The Astros have also brought in 28-year old righty swinging Lance Niekro. Niekro played in 11 games last season for the Giants and he was 3 for 17 (.176 avg, .398 OPS). Niekro has now played in 195 games in his major league career and he is 123 for 499 (.246 avg, .709 OPS) with 61 runs scored, 17 homers and 79 RBIs. Outfielder Victor Diaz played in 37 games last season for the Rangers and he was 25 of 104 (.240 avg, .797 OPS) with 13 runs scored, 9 homers and 25 RBIs. Diaz has now played in 147 games in his major league career and he is 114 of 446 (.256 avg, .796 OPS) with 62 runs scored, 24 homers and 73 RBIs. 37 year old righty reliever Mike DeJean last played in the majors in 2006 with the Rockies. DeJean has now pitched in 565 games (1 start) in his major league career and he is 30-33 with 52 saves, a 4.30 ERA and a 1.51 WHIP.