Answer: Rafael Nadal
Notes: Rafael Nadal, a Spanish professional tennis player, has won the 2017 Men's Singles Barcelona Open Tennis Tournament by defeating Dominic Thiem of Austria in the summit clash by 6-4, 6-1 in Barcelona, Spain. With this, Nadal has won the Barcelona Open singles title a record ten times. The tournament is part of the 500 series on the ATP World Tour and is played on clay courts at the Real Club de Tenis Barcelona.
