Three of the last-16 matches in the men's singles at Wimbledon went to five sets, but tournament favourites Andy Murray and Roger Federer were able to reach the quarter-finals with the minimum of fuss on Monday.
Milos Raonic and Lucas Pouille each came through gruelling encounters, the Canadian recovering from two sets down against David Goffin, while Tomas Berdych and Jiri Vesely face a one-set shootout on Tuesday after the latter saved five match points in fading light prior to the day's final match being suspended.
By contrast, Murray did not face a break point in a 7-5 6-1 6-4 victory over Nick Kyrgios, whose form dipped badly following an absorbing first set, and seven-time Wimbledon champion Federer also won comfortably against Steve Johnson.
There were even shorter workouts for Marin Cilic and Jo-Wilfried Tsonga as their respective opponents, Kei Nishikori and Richard Gasquet, retired due to injuries.
Monday's other contest saw Sam Querrey - the shock conqueror of Novak Djokovic in round three - march on with victory over Nicolas Mahut.
VESELY BACK FROM THE BRINK
There were dramatic scenes on No.3 Court as the fourth set of Vesely's clash with 10th seed and former Wimbledon finalist Berdych drew to a conclusion.
Berdych had led 4-1 and looked set to triumph, only to be broken as he served for the match when leading 5-3.
Vesely then came from 0-40 down in the 12th game to force a tie-break, in which he gave up a 6-1 advantage before surviving a close shave defending a fifth match point.
A forehand from Vesely was called long, but with HawkEye unavailable due to the fading light, umpire Mohamed Lahyani over-ruled and ordered the point to be replayed.
After finally giving up the set, Berdych - who had seemingly been unimpressed with play continuing for so long - asked if the match could be completed under lights on Centre Court, but his request was rejected.
MURRAY, FEDERER IN CRUISE CONTROL
If Murray and Federer are feeling the weight of expectation with the dominant Djokovic having been ousted, it certainly did not show on Monday.
World number two Murray was near faultless in his fourth-round victory, while Federer also progressed at a canter once again.
Neither man has dropped a set in the tournament so far and few would bet against the duo coming face-to-face on Centre Court at the end of the week.
POUILLE, QUERREY BREAK NEW GROUND
Pouille had not won a match on grass prior to this tournament, but both he and Querrey are now through to their first grand slam quarter-finals.
The American needed less than two hours to beat Nicolas Mahut 6-4 7-6 (7-5) 6-4 and set up a last-eight tie with another big-server in Raonic.
Frenchman Pouille showed his fighting spirit to oust Bernard Tomic, the 32nd seed coming from two sets to one down before triumphing 10-8 in the fifth.
Asked what his expectations had been heading to Wimbledon, Pouille replied: "Before the tournament, [my aim] was to win one match on grass. Now, of course, I'm very happy, very emotional."
NISHIKORI, GASQUET MAKE LIMP EXITS
A recurrence of a rib injury hampered Nishikori from the outset against Cilic, who raced into a 6-1 5-1 lead before his opponent retired. Cilic will face Federer on Wednesday.
Gasquet, meanwhile, was able to complete only six games against fellow Frenchman Jo-Wilfried Tsonga - the next player in Murray's way - before withdrawing due to a back problem.
"I felt it yesterday [Sunday]," revealed Gasquet. "This morning I tried to warm up, it was okay. Then during my match, I felt something wrong and I couldn't move after that."