 Complete the following phrase:  Carters 201112 season got off to a poor start as he exited the first two ranking events of the year, the Australian Goldfields Open and the Shanghai Masters, in the first round. At the UK Championships he defeated Robert Milkins, but then lost 26 to Mark Allen in the last 16. After the match Carter stated on Twitter: Im going to retire at the end of the season! And I cant wait! and that he was dead serious about the threat. Later on he admitted the comments were made in the heat of the moment but that he did have some serious thinking to do at the end of the season. His retirement threat looked to be more likely as he lost in the first round in the Masters and the next two ranking events, and then withdrew from the 