Jun 25, 2012 5:49 PM by CNN
NEW YORK - Outfielder Marlon Byrd has been suspended 50 games by Major League Baseball after testing positive for a performance-enhancing substance.
Major League Baseball announced the suspension Monday and said Byrd tested positive for Tamoxifen.
Byrd is currently a free agent, and will be placed on the restricted list for the duration of his suspension, which began immediately. He started the season with the Cubs and was dealt to the Red Sox on April 21. He was designated for assignment by Boston on June 9 and released four days later.
"He played here and he played well," Red Sox manager Bobby Valentine said. "I had no indication or I don't think anyone did."
He hit .210 in 47 games with the two teams, though he hit .270 with a homer and seven RBIs in 34 games with Boston. The Red Sox picked him up when they had a shortage in the outfield after a rash of injuries.
The 34-year old has played for five teams in 11 major league seasons and is a career .278 hitter.
Byrd finished fourth in the National League Rookie of the Year voting in 2003 with the Phillies and was a National League All-Star with the Cubs in 2010.
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