2018 Nitto ATP FINALS Alexander Zverev (GER) defeated Marin Cilic (CRO) 76(5) 76(1) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Marin Cilic (CRO) defeated John Isner (USA) 67(2) 63 64 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Marin Cilic (CRO) defeated John Isner (USA) 67(2) 63 64 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Marin Cilic (CRO) defeated John Isner (USA) 67(2) 63 64 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Marin Cilic (CRO) defeated John Isner (USA) 67(2) 63 64 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Marin Cilic (CRO) defeated John Isner (USA) 67(2) 63 64 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Novak Djokovic (SRB) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Novak Djokovic (SRB) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Novak Djokovic (SRB) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Novak Djokovic (SRB) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Alexander Zverev (GER) and Ivan Lendl (USA) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Alexander Zverev (GER) and Ivan Lendl (USA) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Alexander Zverev (GER) and Ivan Lendl (USA) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Alexander Zverev (GER) and Ivan Lendl (USA) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Alexander Zverev (GER) and Ivan Lendl (USA) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Alexander Zverev (GER) and Ivan Lendl (USA) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Practice session. Alexander Zverev (GER) and Ivan Lendl (USA) Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Doubles final. Mike Bryan/Jack Sock (USA) defeated Pierre-Hugues Herbert(FRA)/Nicolas Mahut (FRA) 57 61 13-11 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Alexander Zverev (GER) defeated Novak Djokovic (SRB) 64 63 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Alexander Zverev (GER) defeated Novak Djokovic (SRB) 64 63 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Alexander Zverev (GER) defeated Novak Djokovic (SRB) 64 63 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Alexander Zverev (GER) defeated Novak Djokovic (SRB) 64 63 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Alexander Zverev (GER) defeated Novak Djokovic (SRB) 64 63 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Alexander Zverev (GER) defeated Novak Djokovic (SRB) 64 63 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS FINAL Alexander Zverev (GER) defeated Novak Djokovic (SRB) 64 63 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Roger Federer (SUI) defeated Kevin Anderson (RSA) 64 63 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Roger Federer (SUI) defeated Kevin Anderson (RSA) 64 63 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Semifinal Novak Djokovic (SRB) defeated Kevin Anderson (RSA) 62 62 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Novak Djokovic (SRB) defeated Alexander Zverev (GER) 64 61 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Novak Djokovic (SRB) defeated Alexander Zverev (GER) 64 61 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS Novak Djokovic (SRB) defeated Alexander Zverev (GER) 64 61 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS O2 ARENA Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS O2 ARENA Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

2018 Nitto ATP FINALS O2 ARENA Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

Rome, 18 /05/2014 Novak Djokovic (SRB) wins the Italian Open for the third time with a 4-6 6-3 6-3 victory over seven times winner Rafael NADAL (ESP) © Ray Giubilo

Petra Kvitova (CZE) Tennis - The Championships,Wimbledon 2015 - Grand Slam ATP / WTA - AELTC - London - - England, UK - 4 July 2015.