Stephen Strasburg to have MRI exam

Updated: August 22, 2010, 7:45 AM ET
ESPN.com news services

PHILADELPHIA -- Washington Nationals rookie pitcher Stephen Strasburg left his start against the Phillies in the fifth inning with a strained tendon in his right forearm.

Strasburg grabbed his right wrist and shook it after a pitch to Dominic Brown on Saturday night. Manager Jim Riggleman immediately left the dugout to check on his ace.

After a brief conversation, Strasburg left. In 4 1/3 innings, he gave up two hits, one run and struck out six as the Nationals rolled to an 8-1 win.

Nationals general manager Mike Rizzo said the young pitcher would have an MRI exam Sunday.

"You're always concerned when a pitcher leaves. We'll see what the MRI says," Rizzo said.

Strasburg was making his third start since returning from a stint on the DL with inflammation in the back of his right shoulder.

Craig Stammen relieved Strasburg with the Nationals leading the Phillies 5-1.

Information from The Associated Press was used in this report.

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