The Texas Rangers activated first baseman Jake Burger from the 10-day injured list Friday.Burger has missed 20 games since being placed on the injury list on July 13 with a left quadriceps injury he sustained two days earlier while running out a grounder during the top of the fifth inning in a 7-3 win over the Houston Astros.Burger, 29, is batting .228 with 11 homers and 35 RBIs in 75 games this season.