Roger Federer: Roland Garros a ‘stepping stone’ to Wimbledon

Roger Federer keeps his eye on a backhand in his win over Dominik Koepfer (Thibault Camus/AP)

Roger Federer survived a soulless late-night scrap with German Dominik Koepfer to reach the fourth round of the French Open – then admitted he could pull out of the tournament with Wimbledon in mind.

Roland Garros’ new night session matches are being held behind closed doors this week because of a 9pm curfew in Paris, and Serena Williams, Novak Djokovic and Rafael Nadal have all taken their turn playing to an empty stadium.