Four years ago, Ramos-Vinolas stunned the then-World No. 3 Federer by defeating him 7-6 (4), 2-6, 6-3 in the second round of the tournament. This triumph boosted Ramos-Vinolas a lot as this was his first win against a Top-10 player. Post-match, Federer was reminded about his 2015 loss and the Swiss great accepted that it was on his mind.