Serena Williams defeated her sister in a two-set match at Wimbledon on Monday, with a series of decisive aces to put her over the top. The fourth-round match saw Serena recover from a difficult third-round face-off against Heather Watson, a British newcomer who pushed her into a third set. Venus, 35, and Serena, 33, both entered Monday’s match with five women’s singles Wimbledon titles under their belts.
