Scott Hairston has a career Major League batting average of .238 (131-for-550) with 31 doubles, seven triples, 16 homers, 47 RBI, 62 runs and 41 walks in 201 games since making his debut with Arizona in 2004. He was the Diamondbacks' third-round selection in the 2001 First-Year Player Draft.
A native of Fort Worth, Texas, Hairston attended high school at Canyon Del Oro in Tucson (Ariz.) before attending Central Arizona Junior College. He is the ninth member of his family to play professional baseball.
Leo Rosales, 26, was placed on the disabled list June 7 with a fracture of the fifth metacarpal in his right hand. Prior to the injury, he was 1-1 with 14 saves and a 3.28 ERA (9 ER/24.2 IP) in 24 relief appearances with Triple-A Portland this year. He notched 27 strikeouts and 10 walks.
Rosales was the Padres' 20th-round selection in the 2003 First-Year Player Draft. He attended Cal State Northridge.