As 2011 Wimbledon champion Petra Kvitova exited on the first day of the US Open, another alarm started flashing when 2011 Wimbledon finalist Maria Sharapova lost the first set 6-3 and was broken at the very start of the second by 19-year-old world No.104 Briton Heather Watson.
Watson, the 2009 junior champion, was playing in the main draw of the US Open for the first time and was close to producing the biggest shock of the tournament, as the third-seeded Sharapova is considered one of the Top 2 favorites, beside Serena Williams.
Sharapova's serve was erratic and Watson was keeping up with the Russian's heavy groundstrokes. Still Sharapova managed to grind out a 3-6 7-5 6-3 victory and advance to the second round.
Kvitova famously made 52 unforced errors in her first round loss, but Sharapova committed even more, 58. The Russian balanced them with 41 winner to Watson's only 9 winners. (Philip Hall/usopen.org)