Roger Federer and Grigor Dimitrov to meet on World Tennis Day

Roger Federer and Grigor Dimitrov will square off at Madison Square Garden in New York on Tuesday as part of the festivities on World Tennis Day.

The 17-time Grand Slam champion is relishing renewing his rivalry with the talented Bulgarian, who reached the Wimbledon semi-finals last year.

His opponent Dimitrov admits "it won't be easy" taking on arguably the greatest player of all time in such a historic venue.

I just want to go out there and really embrace the whole atmosphere. It's always a pleasure when I play against him even though the last three times I lost. You put that aside and he's really a great guy, on and off the court.

"Obviously it's an amazing experience to be out here and participate in such a big venue against him," the 23-year-old told the official ATP Tour website.

"I just want to go out there and really embrace the whole atmosphere. It's always a pleasure when I play against him even though the last three times I lost. You put that aside and he's really a great guy, on and off the court."

WTA Hall of Famers Monica Seles and Gabriela Sabatini will kick off proceedings - 25 years after their historic five-set match at the WTA Tour Championship.

Seles, now 41, defeated Sabatini, 44, in a gruelling three hours and 47 minutes back in November 1990, but the duo are not expecting such a lengthy showdown on Tuesday.

Former Yugoslav world No 1 Seles held an 11-3 career mark against her opponent and was a nine-time major singles champion.

Sabatini won the US Open in 1990 and was Wimbledon runner-up to Steffi Graf a year later.

World Tennis Day aims to promote tennis and increase participation among players around the globe.