Gaël Monfils Gaël Sébastien Monfils (; born 1 September 1986) is a French professional tennis player. He has been ATP rankings, ranked as high as world No. 6 in men's singles by the Association of Tennis Professionals (ATP), achieved in November 2016. Mon ...

was the defending champion, but lost in the second round to

Yuki Bhambri Yuki Bhambri (born 4 July 1992) is an Indian professional tennis player who currently specializes in doubles. He has an ATP career-high doubles ranking of world No. 26 achieved on 31 March 2025. He also has a career-high singles ranking of No. ...

Alexander Zverev Alexander "Sascha" Zverev (; born 20 April 1997) is a German professional tennis player and the current world No. 3. He has won 24 ATP Tour titles in singles and two in doubles, and has been runner-up at three Grand Slam (tennis)#Tournaments, ma ...

won the title, defeating Kevin Anderson in the final, 6–4, 6–4.

Seeds

All

seeds In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be sown, which may include seed and husk or tuber. Seeds are the ...

received a bye into the second round.

Draw

Finals

Top half

Section 1

Section 2

Bottom half

Section 3

Section 4

Qualifying

The top two

receive a bye into the qualifying competition.

Seeds

Qualifiers

Lucky loser

# Marc Polmans

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

Fifth qualifier

Sixth qualifier

References

Main drawQualifying draw
{{DEFAULTSORT:Citi Open - Men's Singles, 2017 2017 ATP World Tour