Gregory Allen Brock played first base for his entire 10 year MLB career, splitting his time evenly between the Los Angeles Dodgers and Milwaukee Brewers.

In 1013 games over 10 major league seasons, Brock posted a .248 batting average (794-for-3202) with 420 runs, 141 doubles, 6 triples, 110 home runs, 462 RBI, 41 stolen bases, 434 bases on balls, .338 on-base percentage and .399 slugging percentage. Defensively, he recorded a .994 fielding percentage as a first baseman. In the 1983 and 1985 National League Championship Series, he hit only .048 (1-for-21) with 3 runs, 1 home run, 2 RBI and 2 walks in 8 games.

Brock was born in McMinnville, Oregon, the son of Joe Brock, who coached baseball at Stayton High School. Greg played for his father at the high school, and in 1995 had his jersey retired at the school. Brock attended the University of Wyoming.