Murray has chance to avenge Ward’s exit after seeing off threat of big-serving Karlovic
Karlovic’s 136 aces put him top of the tournament leaderboard at the start of play but, while the 6ft 11ins Croatian added another 29 to his tally, precision won over power as Murray sealed a 7-6 (9/7) 6-4 5-7 6-4 victory.
“It was an incredibly difficult match,” said Murray.
“It was tiring, it’s not so physically difficult because the points are quick, but it’s mentally tiring and you have to be ready when the chance comes.”
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Hide AdA place in the semi-finals now rests on Murray beating Canada’s Vasek Pospisil, who knocked out Britain’s James Ward in round three.
“He had a close one with James Ward and came back from two sets down [yesterday],” Murray said.
“He’ll be tired, but very confident. With a couple of comebacks he’ll be feeling good about his game and he has a game that suits the grass with a big serve, so it’ll be a tough match.”
Murray had never lost to Karlovic in five past meetings, but the world No 25, who takes a size 16 shoe, knocked out two-time Wimbledon semi-finalist Jo-Wilfried Tsonga in round three and remains a daunting opponent on grass.
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Hide AdThe statistics pointed to a clash of serve versus return with Karlovic enjoying the highest percentage of first-serve points won in the tournament, while Murray boasted the highest percentage of return games won and the most points taken against opponents’ first serve.
The British No 1 one predicted his opportunities to crack Karlovic would be few and far between, but a break point arrived in the very first game as Murray looked to catch his opponent cold.
The chance went begging, however, and Karlovic made his mark with two aces and a 134mph rocket.
Between the Croatian’s one-shot whoppers, one of which clocked a helpless line judge on the head, Murray was able to dictate the rallies and the Scot was frustrated by almost any point he lost which lasted longer than two shots.
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Hide AdThree more break point opportunities came just at the right time for Murray as he led 5-4 and then 6-5, but on each occasion Karlovic served his way out of trouble to force the tie-break.
The Croatian assumed a commanding position when he pulled 4-2 clear, but Murray came storming back and, after 57 minutes, converted his seventh set point at 8-7 when a Karlovic forehand flew long.
Buoyed by his advantage, Murray began to loosen up and some brilliant returning gave him an instant break in the second set as Karlovic began to flounder in the face of his opponent’s subtle shot-making.
Karlovic rarely threatened and the Scot served out to love to clinch the second set.
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Hide AdThe 36-year-old refused to lie down, however, and pounced to seal the third set 7-5 as Murray hit a sloppy backhand into the net.
Centre Court fell flat at the prospect of another set of boom-and-bust, but in the seventh game Murray seized the decisive break and sailed through to his 18th consecutive grand slam quarter-final.