Nadal is yet to drop a set this year at Roland Garros and he is through to the last eight after his last-16 victory over Maximilian Marterer – 6-3, 6-2, 7-6 (7-4).
The world No 1 has now won 37 consecutive sets in Paris and racked up his 234th Grand Slam victory.
Although he produced a near impeccable display against Marterer, Nadal insists he can do better, more specifically when it comes to dominating points and maintaining his levels of intensity.
“Well, I’m not thinking about three matches,” Nadal said about his approach for the latter stages of the tournament.
“I’m just thinking about the next one.
“I believe that I played well at some points or maybe I could improve the intensity of my game and remain aggressive throughout the match, because today I was okay until 6-3, 6-2, and I was dominating quite a lot of points.
“But in the third set I was staying back. Well, you always have to work when you play with good players.
“You have to take the initiative, try to control the points. But all matches are complex.”
Nadal will now take on Argentine Diego Schwartzman in the quarter-finals.