The ESPN set is here, too, with the Baseball Tonight crowd poised for plenty of air time opposite in-season sports.

FORBES: Baseball: Still The Off-Season King

Right as the game resumed, someone in the crowd hurled a baseball that almost hit Walker in the head.

NPR: Fierce Brawl Mars Canada's 10-3 Win Over Mexico

The tournament is being played at Petco Park, which is a baseball stadium, and a huge crowd is expected.

BBC: Sevens Scots head Stateside

Three 10-meter-long 1997 Terex TS14D motor scrapers -- machines that chew up roads for repaving -- roar past a crowd of 1, 200 in baseball caps and blue jeans at a recent Ritchie Bros. auction in Clinton, Wisconsin.

FORBES: Heavy metal

The crowd of men surrounding the cars looked as frenetic as a group of baseball fan boys on opening day.

FORBES: The Most Beautiful Cars of 2012

According to a story on the World Baseball Classic's official website, a Canadian player provocatively raised his arms at the largely pro-Mexican crowd.

CNN: March 10, 2013 -- Updated 0344 GMT (1144 HKT)