The London crowd were left disappointed when Mark Philippoussis retired with a back injury during the evening session’s singles match against Tim Henman with the Australian 5-4 behind in the first set.
"It was really unfortunate," said Henman. "It's a great new surface this year and I think it really benefits the players.
“You feel like you can construct rallies out there. I think we played some good tennis at times. To end like that is really unfortunate for Mark, hopefully he can recover quickly."
Philippoussis added: "Obviously it’s not the way you want to finish on the court, especially for such a beautiful cause.
“It's a great event so it's incredibly disappointing. I was having a great time out there, it's a great court, so I hope I can rest it for a couple of days, and hopefully see if I can get out there on Friday.”