Red Sox call up Diaz to start at third base

The Red Sox made two roster moves this morning. They purchased the contract of 28-year-old infielder Jonathan Diaz from Triple A Pawtucket and designated righthander Clayton Mortensen for assignment.

The Sox do not feel that Stephen Drew (right hamstring) will need to go on the disabled list. Because Will Middlebrooks has not been in Pawtucket for 10 days, he was not eligible to return.

The Sox didn’t want to bring up 20-year-old Xander Bogaerts for what may only be a few days.

Mortensen had a 5.34 earned run average over 24 appearances and has not pitched as well this season as he did last. He also was a victim of an inflexible 40-man roster.


The Red Sox have five catchers on their 40-man roster and Daniel Bard, who has not pitched in a minor league game since May 15.

The 5-foot-9 Diaz has no major league experience. He was drafted by the Blue Jays 2006 out of North Carolina State and spent seven seasons in their organization, reaching Triple A. He signed with the Red Sox as a minor league free agent.

Diaz is familiar with the defensive system because of his experience with John Farrell, Brian Butterfield and Torey Lovullo during his time in Toronto. Diaz is career .228 hitter in the minors with only 47 games of experience at third base, 12 this season.

Diaz also can play shortstop, something the Red Sox valued.

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