Martina Navratilova at the Rally For Bally in Birmingham, one of three such events in the UK on Sunday.
Tim Henman and Anne Keothavong at a mixed doubles match in Birmingham to help honor Elena Baltacha.
Keothavong helped raise money for causes that were dear to Baltacha, who passed away from cancer in May.
Henman during one of many light moments at the Edgbaston Priory Club.
Defending Aegon International champion Elena Vesnina at the Eastbourne Rally For Bally event.
Jelena Jankovic signed autographs for adoring fans in Eastbourne.
Colin Fleming, Agnieszka Radwanska, Petra Kvitova and Greg Rusedski with kids before their doubles match.
Former ATP World Tour star Rusedski and former Wimbledon champ Kvitova teamed up in Eastbourne.
Kvitova and Rusedski took on Fleming and Radwanska in mixed doubles.
Radwanska and Fleming clearly enjoyed themselves while also doing their part for charity.
Radwanska got plenty of laughs ahead of the Aegon International, where she is the No.1 seed.
Two-time Eastbourne winner Rusedski tried his hand at being a ballboy.
Participants at the Rally For Bally event at the Aegon Championships at Queen's Club posed with kids.
Former Wimbledon champions Andy Murray and Martina Hingis joined forces at Queen's Club.
Hingis, who is playing doubles this week in Eastbourne, was a happy participant in the charity event.
Jamie Murray played alongside his brother, Andy, during the festivities.
Ross Hutchins, who is a cancer survivor, and Victoria Azarenka were mixed doubles teammates.
Azarenka, who returns to the WTA this week after an injury absence, gave umpiring a try.
British No.1 Heather Watson certainly enjoyed herself at Queen's Club.
The Murray brothers, Laura Robson, Hutchins, Azarenka, Watson and Hingis took a selfie.