Answer: Rafael Nadal
Notes: Rafael Nadal, a Spanish professional tennis player, has won the 2018 Monte-Carlo Masters tennis tournament by defeating Kei Nishikori in the final by 6–3, 6–2 in Roquebrune-Cap-Martin, France. With this, he became the first man to win a single tournament 11 times in the Open era with his 76th ATP Tour title. By winning the title, Nadal also retained the ATP no. 1 singles ranking. Apart from this, Nadal also overtook Serbia's Novak Djokovic to clinch most Masters 1000 titles (31).
