Born in 1987, I am a tennis player from Scotland. I have been runner-up once in the US Open and twice in the Australian Open and have reached the semi-finals of all the four Grand Slams. Since mid-August, I have won 25 of 26 matches, losing only in the US Open semi-finals. Last month, I won the Shanghai Masters and am now No. 3 in the ATP rankings. Who am I?
Answer to last weeks question: Shakti Kapoor