While Murray's draw has opened up, Roger Federer and Novak Djokovic look destined to meet in the last four. Then, Djokovic retired against Berdych because of his elbow injury after losing the first set in the tie-break. Querrey beat Jo-Wilfried Tsonga in a match that stretched to a second day, then knocked off Kevin Anderson to return to the quarterfinals, where he lost past year to Milos Raonic. In the opening stages of the second set, the three-time tournament champion refused to continue the fight.
Djokovic stopped the quarterfinal match while trailing 7-6 (2), 2-0.
It's not the first time the Brit has had to make a correction. Nadal has a 5-1 record over Muller, although the Luxembourg grass court specialist beat him at Wimbledon in 2005. He'll face U.S. Open champion Marin Cilic of Croatia in the next round.
Sam Querrey is not too far off at 5.50, but expect Murray to win this match with relative ease. Cilic won 17-15 in the fifth set.
He has reached seven grand slam semi-finals - second only to Ivan Lendl among Czech men.
It was at this point where the two-time Wimbledon champion's sore hip began to take its toll and Querrey exploited the weakness with an array of impressive groundstrokes.
Querrey, the United States 24th seed who knocked out Novak Djokovic in 2016, made the quarter-finals for a second successive year with a 5-7, 7-6 (7/5), 6-3, 6-7 (13/11), 6-3 over unseeded Kevin Anderson of South Africa.
Five years have passed since the Swiss master denied Britain's great hope in the title match at the All England Club.
Then Querrey, 29, came up with a Murray injury conspiracy theory after winning a five-set thriller on Centre Court.
By the fourth set Murray was noticeably limping, grimacing and complaining to his players' box.
Wimbledon defended shunting top women players onto the outside courts yesterday, saying the big four of men's tennis were the marquee matches demanded by broadcasters and spectators.