Watch 2009 ATP World Tour Finals Live: Nikolay Davydenko vs Juan Martin del Potro Tennis Match Online

Juan Martin del Potro was able to regain his composure and win the match after losing the first set of his semifinal game against Robin Söderling. del Potro will now advance to the 2009 ATP World Tour Finals where he will be facing Nikolay Davydenko. Davydenko advanced to the finals by beating No. 1 ranked Roger Federer in their semifinal match. Don't miss to Watch Nikolay Davydenko vs Juan Martín del Potro LIVE tennis match in the 2009 ATP World Tour Finals this Sunday.