Veteran reliever Sergio Romo waited nearly 20 years for Mexico to ask him to play, and now that he has the opportunity to represent his parents' homeland, he's holding on to it for all he's worth.

In Japan with the Mexican national team for a pair of exhibition games against Samurai Japan, Romo told Kyodo News on Tuesday about his journey and his desire to play in March's World Baseball Classic.

"With the Classic coming up next spring, I want to be ready for that. It's easy to come and get involved now because I'm looking forward to that," said Romo, who has played for the San Francisco Giants since 2008 and is now a free agent, as his team practiced at QVC Marine Field.