They were rivals on court.

Remember those two spectacular finals at Wimbledon in 1980 and 1981.

They played each other on 14 occasions, and shared the spoils.

However, years after they hung up their rackets tennis legends Bjorn Borg and John McEnroe have turned partners.

Their on-court rivalry is now a thing of the past.

At present, they have announced their partnership by launching of a limited edition underwear collection.

The duo made the announcement to the international press at the boating lake in Wimbledon Park.

The limited edition will go on sale this August and part of the earnings will be donated to the John and Patty McEnroe Foundation.

Besides, there will be a charity auction as well, which will involve rare tennis memorabilia of the two stars.

Those participating in the auction will also have the opportunity to play with either of the legends.

The two legends bonded big time at the launch.

The unique collection will have four different styles of the inner wear.

Of them, two will be designed by Borg and two by McEnroe.

The collection, modeled after the golden age of tennis, will be produced in a limited edition and will be available for a brief period only.