Defending Wimbledon champion Serena Williams complains about her court assignment Thursday, when she and Simona Halep were put on Court 2, the third most important court at Wimbledon behind Centre Court and Court 1. Wimbledon only plays three matches per day on both Centre Court and Court 1, and traditionally plays four men’s matches and only two women’s matches.

On Thursday, Roland Garros champion Li Na was scheduled to face Sabine Lisicki on Centre Court, while Maria Sharapova was set to face British teenager Laura Robson on Court 1. Serena’s older sister, five-time Wimbledon champion Venus, has also taken issue with the All England Tennis Club over the issue in the past.

"They like to put us on Court 2, me and Venus, for whatever reason," said Serena, who defeated Haelp in three sets. "I haven't figured it out yet. Maybe one day we'll figure it out. But obviously they're not gonna change. [The men’s defending champions] are never moved across. Actually, Venus and I have won more Wimbledons together than a lot of the players, or by ourselves in doubles even. Like I said, they're not going to change, doesn't look like."