ST. LOUIS -- The St. Louis Cardinals acquired bullpen help at the trade deadline, getting right-hander Edward Mujica from the Miami Marlins for 2010 first-round pick Zack Cox.

The 28-year-old Mujica is 0-3 with a 4.38 ERA and two saves in 41 games and has held right-handed hitters to a .211 batting average. Last year he was 9-6 with a 2.96 ERA.

The 23-year-old Cox was batting .254 with nine homers and 30 RBIs at Triple-A Memphis. He was the 25th overall pick in the 2010 amateur draft out of Arkansas and jumped from Class A Palm Beach to Double-A Springfield last season.

The Cardinals will announce a corresponding roster move after Mujica arrives in Colorado for a series against the Rockies that began Tuesday night.

On Twitter, Cox said Marlins fans were already welcoming him.

"here I come #miamimarlins #stoked looking forward to my bright future it's been a good run with the cardinals," he wrote.

Information from The Associated Press was used in this report.