Roger Federer will take on the guy known as "Baby Fed" in an exhibition match at Madison Square Gardeon on March 10.
Grigor Dimitrov, whose style of play reminds some of Federer, will face the 17-time major champion in the eighth edition of the BNP Paribas Showdown.
Dimitrov reached his first Grand Slam semifinal at Wimbledon in July, losing in that round to eventual champion Novak Djokovic.
This is Federer's third time taking part in the event at the arena used by the NBA's Knicks and the NHL's Rangers. He played Pete Sampras in 2008 and Andy Roddick in 2012.
Tickets go on sale Monday.