Milos Raonic was the defending champion, but lost in the second round to Mikhail Youzhny.
Alexander Zverev won his first ATP title, defeating Stan Wawrinka in the final, 6–2, 3–6, 7–5.
Seeds The top four seeds receive a bye into the second round.
Draw
Finals
Top half
Bottom half
Qualifying
Seeds
Qualifiers
Qualifying draw
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
References Main draw Qualifying draw