Unseeded Sebastian Korda agonisingly missed out on a place in the Wimbledon quarter-finals after a crazy fifth set against Karen Khachanov.
Korda has attracted headlines with his run to the last 16 given his family's sporting success - his sister Nelly recently won the Women's PGA Championship while his father Petr is a former Australian Open champion.
The American had seen off seeds in Alex de Minaur and Dan Evans to reach this stage, almost repeating the trick on his 21st birthday against Khachanov on Monday.
However, he ultimately fell to defeat as Khachanov won 3-6 6-4 6-3 5-7 10-8 in a classic clash that lasted just short of four hours.
After Korda had forced a decider, there were 13 breaks of serve in a remarkable final set on Court 18.
Khachanov had a break advantage at 5-4, 6-5 and 7-6 but Korda – who racked up 56 winners - denied him from serving it out for victory on each occasion.
The Russian finally was able to get over the line after breaking his American opponent at 8-8 and finally holding serve.
Following his gruelling win, Khachanov will play Denis Shapovalov next after the Canadian - conqueror of Andy Murray in the previous round - saw off Roberto Bautista Agut in straight sets.
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Shapovalov won 6-1 6-3 7-5 to eliminate the eighth seed and reach his second grand slam quarter-final.
Elsewhere, seventh seed Matteo Berrettini continued his serene progress at Wimbledon, thrashing Ilya Ivashka 6-4 6-3 6-1.
Champion at Queen's prior to the tournament, Berrettini lost serve just once in the contest and has not dropped a set since doing so in his first-round win over Guido Pella.
He will face Alexander Zverev or Felix Auger Aliassime for a place in the semi-finals.