Grigor Dimitrov and Tomas Berdych advanced to the quarter-finals of the Aegon Championships on Wednesday.
Dimitrov, seeded sixth in London, came back from a set down to defeat Frenchman Julien Benneteau 4-6, 6-3, 6-4 on the grass courts of London.
The Bulgarian's serve was on point, firing 15 aces to make up for losing his opening service game and the set with it.
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"I'm just focusing on my things and what I have to do," the world number 11 said after the match.
"The outcome was great. I'm just happy that I won the match and I think even happier that I didn't play my best and I won. I think with each match, the level gets higher and higher."
Meanwhile, Berdych was pushed all the way by Denis Shapovalov, eventually winning 7-6(4), 6-7(4), 7-5 in nearly two and a half hours.
The match featured just one break of serve, which came in the final game as Berdych secured the win.
Elsewhere, fifth seed Jo-Wilfried Tsonga was knocked out by Gilles Muller, losing 6-4, 6-4 while America's Donald Young eased past Viktor Troiki 6-3, 6-4.