The world's leading men's doubles players are also in action at the ATP World Tour Finals in London, where world number one Daniel Nestor reflects on his successful transition from singles.
You had a very respectable career in singles and broke your way into the top 60 before deciding to switch to doubles. How did that come about?
In 1999 I had my best ever season in singles but at the end of the year I injured my shoulder and had to have an operation. When I came back I started playing well again and I picked up a few good wins. But then my elbow started to play up and overall my body wasRead More »from Guest blog: Nestor on doubles life