BOSTON (AP) — The Red Sox have designated catcher A.J. Pierzynski for assignment and called up catching prospect Christian Vazquez from Triple-A Pawtucket.

The club also recalled right-hander Rubby De La Rosa from Pawtucket to start Wednesday night against the Chicago White Sox.

De La Rosa was 2-2 with a 2.51 ERA in five starts for Boston this season. He has also made 12 starts over two stints with Pawtucket.

Vazquez, 23, made his major league debut Wednesday night.

The 37-year-old Pierzynski hit .254 with four home runs and 31 RBIs in 72 this season. He signed an $8.25 million, one-year contract with the Red Sox as a free agent in December.

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