On March 27, 2011, Morgan was traded to the Milwaukee Brewers in exchange for prospect Cutter Dykstra (son of baseball player Lenny Dykstra). Morgan fractured his middle finger in the 8th inning on a sacrifice bunt against Jonny Venters. After two separate stints on the disabled list, he joined Carlos Gómez in a platoon in center field with Gómez in the lineup versus left-handed pitchers and Morgan in the lineup versus righties. On June 8 against the New York Mets, Morgan recorded his first walk-off hit with a double down the right field line at Miller Park to win the game 7–6. After the game, Morgan said that he did not know it was a walk-off until he saw his teammates running out onto the field. In 2011, he batted .304 and was third in the NL in hit by pitch (14) and sacrifice hits (15).