U.S. Open women's doubles champions Andrea Hlavackova and Lucie Hradecka have split after partnering for five years.

The Czechs won 11 doubles titles together, including the 2011 French Open. Last season, the pair partnered to reach finals at Wimbledon, the Olympics, the U.S. Open, and the WTA Championships. The pair were also the Czech Republic’s doubles team in Fed Cup.

"It was Andrea's decision... she told me she wanted to play with Lucie Safarova next year and focus on singles," Hradecka told the tennis-arena.cz. "I don't think it will be a problem to play in the Fed Cup together."

Hradecka will partner with the Netherlands’ Michaela Krajicek.

“I would like to thank Lucie Hradecka very much for all the years we played together as a team, it was an amazing part of my career that I will never forget," Hlavackova said on her web site. "I wish her all the best for the future.”