At Roland-Garros, the world No. 154 defeated Russian Aslan Karatsev 6-3, 4-6, 6-4, 3-6, 7-6 (5) and will now face Canadian Felix Auger-Aliassime.
The Norwegian Ruud came out as the victor after what was a thrilling contest that saw a brilliant tie-break in the very first set.
Sabalenka defeated American Anisimova for the first time in five tries. Garin was clueless to Zverev’s ball-striking.
The Greek edged out a 6-3, 5-7, 7-6 (7-4) win against Grigor Dimitrov to make it through to the next round of the competition.
After beating second seed Alexander Zverev 6-3, 6-1, the 19-year-old mentioned that it was watching Rafa win this particular title as he was growing up that inspired him.
It is the second straight time the Italian has qualified for an ATP 1000 quarter-final and he will face a stern test in second seed Alexander Zverev.
Zverev won a gold medal in the men's singles event, which has managed to elude those two superstars in an individual capacity.
He started his professional tennis career in 2016. He won his first ITF Grade 1 in Canada at the Repentigny Internationaux de Tennis Junior
Zverev did make an outstanding comeback in the second set after losing the first, but his opponent on the day was just too good.
The 20-year-old Italian erased five match points against Pablo Carreno Busta in a 5-7, 7-5, 7-5 victory.