Louis Cardinals have traded third baseman and former World Series MVP David Freese to the Los Angeles Angels for outfielder Peter Bourjos as part of a four-player trade, the teams confirmed Friday. Bourjos, 26, is still trying to work into his prime after back-to-back seasons of limited playing time. The Angels and Cardinals swapped center fielder Peter Bourjos and third baseman David Freese on Friday, as part of a four-player deal that also saw reliever Fernando Salas go to Southern California and outfield prospect Randal Grichuk move to St. Louis. Freese fills the third base void in Anaheim that was created when the Angels traded Alberto Callaspo to Oakland in July. The Cardinals, meanwhile, also will receive outfield prospect Randal Grichuk. Freese, a hero in St. Angels general manager Jerry Dipoto has made upgrading the pitching staff a prime focus of his offseason activity. For his career, he’s a bit light in the power department, with a .286/.356/.427 line, and he’s had a very tough time staying healthy, averaging just 112 games a year over the past four seasons due to ankle, wrist and lower back woes, though to be fair, he’s played in 282 games over the past two seasons.