Accelerated video of the making of the Center Court in the Palais des Sport of Marseille for the Open 13. The transformation is stunning.

Roger Federer came through a tight QF match against the Finn Nieminen. Just as in his previous match he didn't face any breakpoints. Next up is Nikolay Davydenko who beat Richard Gasquet 7-5 6-3. Fed leads their H2H by 16-2, beating him 6-2 6-2 in their last meeting in Doha this year.

Juan Martin del Potro is through to his second consecutive ATP Tour final, at the Open 13 in Marseille.

After his defeat against Fernando Verdasco in Miami, Rafael Nadal already back to training. He is working on clay courts to prepare Monte-Carlo (04-12) and all the clay season.

IPTL 2015: Day 13 Highlights