Roger Federer (ATP 2) has Wednesday placed before the quarter-finals at the ATP tournament in the German Stuttgart (grass/656.015 euro).
Federer, who in the first round was exempt, defeated in the second round of the German Mischa Zverev (ATP 54) in three sets with 3-6, 6-4 and 6-2. The match lasted one hour and 35 minutes.
In the quarter-finals will take Federer against the Indian Prajnesh Gunneswaran (ATP 169) or the Argentine Guido Pella (ATP 75). If the Swiss in Stuttgart to the final, knock, he is the Spaniard Rafael Nadal of the leadership position in the ATP ranking.
It was the first game for the 36-year-old Federer since march 24. When he lost in the second round of the Masters 1.000 tournament in Miami of the Australian Thanasi Kokkinakis (ATP 150) in three sets. Federer showed afterwards the gravelseizoen left to prepare for Wimbledon, where he for a ninth title.
There are no Belgians on the main table in Stuttgart. Ruben Bemelmans (ATP 110) was killed in the first qualifying round.