Critics say Team USA should be more star-studded. No Buster Posey or Matt Cain. No Mike Trout or Troy Tulowitzki. No Clayton Kershaw or Justin Verlander or David Price.

"There's one way to quiet all that," Ryan Vogelsong said, "and that's to go win the thing."

The World Baseball Classic provisional rosters were announced Thursday, and Vogelsong and Jeremy Affeldt of Team USA were among a huge Giants contingent to commit. Others were Pablo Sandoval, Marco Scutaro and Jose Mijares (Venezuela), Angel Pagan and Javier Lopez (Puerto Rico), Sergio Romo (Mexico) and Santiago Casilla (Dominican Republic).

The A's have a smaller representation: Pedro Figueroa (Dominican Republic).

"There might not be a lot of glamorous names," Affeldt said of the U.S. roster, "but you've got a good group of veterans and young guys that I feel form a good team with fire to say, 'We want to win this time, not just go through the motions.' "

Team USA, which fell short of the title game in previous WBCs (2006 and 2009), begins training March 1 at the Rockies/Diamondbacks complex in Scottsdale, Ariz., and the journey could last nearly three weeks if the Americans reach the championship game at AT&T Park on March 19.

The Giants have a shortened offseason after clinching the World Series on Oct. 28 and parading through San Francisco on Halloween, and players choosing not to participate have legitimate reasons - Posey hasn't had a full spring training since 2011, and Cain pitched 249 1/3 innings last year.

But for Vogelsong, 35, and Affeldt, 33, this might be their last crack at an international stage. In phone interviews, both acknowledged it's a reason they wanted to pitch in the 16-nation WBC.

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