The Bombers have been honored by a Sox fan.
"This is a team that goes that goes down to Spring training every year expecting to win it all, and more often than not you guys get preetty close," Obama at the ceremony. "Of course, if I had Rivera I'd get pretty close, too. My White Sox would get close every year."
"For a White Sox fan like me, it's painful to watch Mariano's cutter when it's against my team, or see the Yankees win the Pennant while the Sox are struggling on the South Side," the President added.
The Yankees, their coaches and staff all met with Obama and Biden.
Manager Joe Girardi presented the President with a #27 jersey (because of their 27 World Series wins), which was signed by the entire team.
"Being a Yankee is as much about character as it is about performance," said Obama.
When Joe Girardi held the World Series trophy with the President for a photo op, a female sounding voice shouted out, "You want to hold it you may not get a chance to again?"
The room exploded in "Ooohs" and laughter.
The president replied, "And you wonder why the other teams don't root for you!" -- which got its own round of guffaws.
Earlier in the day, members of the team visited war wounded at Walter Reed Army Medical Center.
The White House visit was the fifth for the Yankees core four — Derek Jeter, Mariano Rivera, Andy Pettitte and Jorge Posada — who have a handful of championship rings. They've met three presidents — Bill Clinton in the 1990s, George W. Bush in 2001 and now Obama.
The Yanks won the World Series in six games last year, defeating the Philadelphia Phillies.
The president and Vice President Joe Biden will have private economic and defense meetings at the White House before and after their Yankees meeting.
In the evening, the president will deliver remarks at a summit intended to identify ways to strengthen economic ties between the United States and Muslim communities around the world.