mapreduce

Description: Sam Querrey

Description: Richard Gasquet

Description: Ryan Harrison

Description: Stefanos Tsitsipas

Description: Roger Federer

Description: Rafael Nadal

Description: Nick Kyrgios

Description: Milos Raonic

Description: Marin Cilic

Description: Kyle Edmund

Description: Marco Cecchinato

Description: Lucas Pouille

Description: Kei Nishikori

Description: Kevin Anderson

Description: Juan Martin Del Potro

Description: John Isner

Description: Grigor Dimitrov

Description: Hyeon Chung

Description: Fabio Fognini

Description: Jack Sock

Description: Denis Shapovalov

Description: Borna Coric

Description: Alexander Zverev

Description: Daniil Medvedev

Description: Dominic Thiem

Description: Team Diego Schwartzman

Description: Team Stefanos Tsitsipas

Description: Team Alexander Zverev

Description: Team Denis Shapovalov

Description: Team Sam Querrey

Description: Team Kei Nishikori

Description: Team Lucas Pouille

Description: Team Nick Kyrgios

Description: Team Karen Khachanov

Description: Team Daniil Medvedev

Description: Team Ryan Harrison