Serena Williams was forced to withdraw from her doubles match as a result of a viral illness, Wimbledon organisers said.
The 32-year-old appeared groggy as she served four consecutive double faults on Court One, as the sisters forfeited the game in the first set.
"The word from the referee's office is that Serena Williams is suffering from a viral illness," a Wimbledon tweet said.
28-year-old Richard Scott proposed to his girlfriend Veri Croce on the hill at the All England Club.
What happened to Andy Murray in the moments leading up to his now-notorious pre-match outburst?
During his defeat yesterday to Grigor Dimitrov, Andy Murray was heard by some onlookers to curse and swear at the players box.