As of October 10, 2009, Upton led the Diamondbacks in batting average (.300) and hits (158) to go along with 26 home runs (including his first career grand slam on 6/2/09 against the Dodgers) and 86 RBI. He's also thirteenth in the NL in slugging percentage (.532, third among outfielders) and has compiled 20 stolen bases to go along with 7 triples and 30 doubles. On August 5, 2009 against the Pittsburgh Pirates, Upton strained his right oblique trying to steal second base, resulting in a stint on the disabled list. Rookie outfielder Trent Oeltjen had taken over his spot on the roster.