Revere fills Philadelphia's need for a center fielder. The 24-year-old left-handed hitter batted .294 with 40 stolen bases in 124 games last season.
Worley was 6-9 with a 4.20 ERA last year after going 11-3 with a 3.01 ERA as a rookie in 2011 and helping the Phillies win their fifth straight NL East title. He had elbow surgery in September, but is expected to be ready for spring training.
May was 10-13 with a 4.87 ERA at Double-A Reading.
Revere, a former first-round pick by the Twins, is a .278 hitter with 64 RBIs and 74 steals in two-plus seasons with Minnesota. He's made 126 career starts in center field, 84 in right field and 19 in left field.
The Phillies pursued free agent center fielder B.J. Upton, who left Tampa Bay for a $75 million, five-year deal with Atlanta. They also had some interest in Michael Bourn and Josh Hamilton. Both All-Stars are still free agents.