 Complete the following phrase:  He began the season by winning the Shanghai Masters, defeating Liang Wenbo 105 in the final. On the way to the final, he lost only 6 frames. He beat Graeme Dott 50 in the first round, Marco Fu 52 in the second round, Ding Junhui 53 in the quarter-finals, and John Higgins 61 in the semifinals. After his Shanghai Masters victory, he joined the newly founded Snooker Players Association. In the second ranking event, the Grand Prix, he beat Jamie Burnett 53 in the first round, but then lost narrowly against John Higgins in the second round, by 45. On 29 November 2009, OSullivan did not retain his Premier League Snooker title, with Shaun Murphy defeating him 73 in the final. Following his 93 victory over Matthew Stevens in the first round of the 