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Daisuke Matsuzaka will start for Red Sox on Saturday vs Nats

Daisuke Matsuzaka will pitch for the Boston Red Sox on Saturday. He's been out since May 2011 with an injury. (Jim Rogash/Getty Images)

Daisuke Matsuzaka will start on Saturday for the Red Sox in a game against the Washington D.C. Nationals, according to a tweet from Nick Cafardo of the Boston Globe.

Matsuzaka last pitched May 2011 and then a month later underwent "Thomas John" surgery, a procedure that replaces a ligament in the elbow with a tendon from another part of the body.

As part of his rehab assignment, the 31-year-old spent Tuesday pitching 1 1/3 innings and allowed one run for the Triple-A Pawtucket team.