US Open Tennis
Maria Sharapova of Russia returns a shot to Flavia Pennetta of Italy during the U.S. Open tennis tournament in New York, Friday, Sept. 2, 2011. (AP P...
Maria Sharapova of Russia returns a shot to Flavia Pennetta of Italy during the U.S. Open tennis tournament in New York, Friday, Sept. 2, 2011. (AP Photo/Charlie Riedel)
US Open Tennis
Andy Roddick reacts after winning his match against Julien Benneteau of France during the U.S. Open tennis tournament in New York, Sunday, Sept. 4, 2...
Andy Roddick reacts after winning his match against Julien Benneteau of France during the U.S. Open tennis tournament in New York, Sunday, Sept. 4, 2011. (AP Photo/Charlie Riedel)
US Open Tennis
Caroline Wozniacki, of Denmark, acknowledges the crowd after defeating Svetlana Kuznetsova, of Russia, in the fourth round of the U.S. Open tennis to...
Caroline Wozniacki, of Denmark, acknowledges the crowd after defeating Svetlana Kuznetsova, of Russia, in the fourth round of the U.S. Open tennis tournament, Monday, Sept. 5, 2011, in New York. (AP Photo/Elise Amendola)
APTOPIX US Open Tennis
Roger Federer, of Switzerland, flashes a thumbs up to the crowd after beating Juan Monaco, of Argentina, 6-1, 6-2, 6-0 during the U.S. Open tennis to...
Roger Federer, of Switzerland, flashes a thumbs up to the crowd after beating Juan Monaco, of Argentina, 6-1, 6-2, 6-0 during the U.S. Open tennis tournament in New York, Tuesday, Sept. 6, 2011. (AP Photo/Charles Krupa)
Roger Federer and Andy Roddick have met 22 times overall and in four Grand Slam finals, including a 16-14 fifth set at Wimbledon in 2009. Now they're taking their rivalry to a new venue: Madison Square Garden.
Federer and Roddick will play a best-of-three-sets match as part of the annual BNP Paribas Showdown exhibition March 5, which also will include Maria Sharapova against top-ranked Caroline Wozniacki.
Federer owns a record 16 Grand Slam titles, and he's 20-2 against Roddick, including 4-0 in major finals.
Federer faced Pete Sampras in an exhibition at MSG in 2008; Roddick never has played at the arena used for New York Knicks and New York Rangers games.
Tickets go on sale Oct. 3.