Andriy Yarmolenko scored an emotional extra-time winner as West Ham overturned a first-leg deficit against Sevilla to reach their first European quarter-final since 1981.
Yarmolenko has been on compassionate leave as he tried to deal with the trauma of having friends and relatives back home in war-torn Ukraine.
But after making a goalscoring return to the pitch against Aston Villa on Sunday, Yarmolenko swept the Hammers past Sevilla as he converted a rebound after Pablo Fornals' low shot had been parried into his path by visiting keeper Bono.
The 32-year-old forward, on as a substitute for Said Benrahma, looked to the skies as he marked his special moment and the London Stadium erupted in jubilation.