round of the Eastbourne International by world No. 28, Sybille Bammer, but saw off a mugger in central London who tried to snatch her handbag before heading to Wimbledon, where she experienced a first-round loss to world No. 80, Patricia Mayr. After this, Keothavong played the Stanford Classic in California where she lost in the opening round of the singles to Elena Dementieva. Keothavong also played in the doubles with Ayumi Morita against Julie Coin and Marie-Ève Pelletier, trailing 4–6, 5–3 when she attempted to run down a drop shot and, in trying to avoid a collision with the net post, suffered a serious knee injury, rupturing her left anterior cruciate ligament and meniscus, a similar injury to the one she suffered in 2004 in her right knee. This injury ended Keothavong's year and as a result, her year-end ranking dropped to world No. 84. 2010 After six months out of action due to her knee injury, Keothavong returned to competitive action in February 2010 at the Fed Cup. She faced Patricia Mayr of Austria in her first match back and was beaten in straight sets. She partnered Sarah Borwell to take on Mayr and Yvonne Meusburger in the doubles, and again lost in straight sets. However Keothavong did manage to claim victory in her other two singles ties against players from Belarus and the Netherlands. Keothavong then returned to the tour at the Dow Corning Tennis Classic in Michigan in the 100k event. She battled past Ivana Lisjak in three sets before only dropping two games in a drubbing of Daniilidou. She then faced Marta Domachowska and went down in three sets after she won the first. At the Cellular South Cup in Memphis, Keothavong reached the semifinals, on her return to the main tour. By defeating Kristina Barrois, Michelle Larcher de Brito, and Karolina Šprem in three impressive wins, all in straight sets. She then fell in three sets to Sofia Arvidsson in the semifinals, after battling back from a set down lost she lost the decider. Keothavong then competed in two Premier tournaments, the Indian Wells Open and Miami Open. Keothavong crashed out in round one in both tournaments, to Anna Chakvetadze in three sets, after winning the first to continue her losing record against her in Indian Wells. And under sad circumstances in Miami, as she lost in straight sets to Tamira Paszek and said afterwards