Serena Williams has described winning her third WTA Tour Championships as 'achieving a dream'.
The American admitted that she was surprised to find a passionate crowd in Istanbul and was delighted with the support.
"It feels great to have achieved my dream," Williams said.
"The Turkish crowd were fantastic. I have never seen so many signs with my name on them before.
"To come back after being in the hospital, I feel so happy whether I win or lose, its awesome."
The 31-year-old has enjoyed a remarkable return to form in 2012, winning at Wimbledon and the US Open plus earning an Olympic Gold medal.