Lesbian couple makes history playing at Wimbledon.

Belgium's Greet Minnen (R) and Belgium's Alison van Uytvanck talk during their women's doubles second round match on the fifth day of the Wimbledon Championships in southwest London, on July 5, 2019. The pair made history as the first ever gay couple to compete together at the tournament. (ADRIAN DENNIS—AFP/Getty Images)

When Alison van Uytvanck and Greet Minnen stepped onto the court at Wimbledon on Tuesday, it was their first time playing doubles together in a grand slam tournament match.

Off-the-court, however, they have been paired for three years…