Although Guerra said he's 100 percent healthy following shoulder surgery, and the Dodgers didn't stand in his way to participate -- as they had the right to do because of the surgery -- Guerra was told on Wednesday that liability issues would prevent him from playing.
He said he had an extra physical exam to allay fears and wasn't told who made the final call, only that he's back with the Dodgers.
"Any time you get the chance to put on the uniform of the national team, it's a big honor just to be considered," he said. "More than anything, my family in Mexico was so pumped up. That's what bothers me. But my dad talked me through it. He understands it's out of my control. It wasn't my choice. But I sent him a photo of me in uniform. That makes me feel like a million bucks."
Guerra said he'll be rooting for Team Mexico, which plays the United States on Friday.
Guerra was added to the Mexican team last week when other pitchers dropped off. Because of an injury-plagued season last year in which he also underwent knee surgery and lost his job as closer, Guerra is fighting to stay in the big leagues this year.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.