West Ham progressed to the round of 16 of the Europa Conference League after a 4-0 second leg win against AEK Larnaca.
The Hammers put aside their home woes by overcoming Cypriot side AEK Larnaca with a 4-0 victory at the London Stadium and 6-0 on aggregate.
David Moyes’ side progressed through a two-legged play-off to qualify for the competition proper and then won all six of their group matches before dismantling Larnaca to reach the quarter-finals.
Scamacca, West Ham’s £35m summer signing who has struggled to adjust to life in the Premier League, had his chance up front with Michail Antonio, the first-leg double goalscorer, out through injury.
The 24-year-old, whose “physics” are below the numbers they should be, according to Moyes, seemed eager to impress from the start.
He sent a curler from 25 yards just wide before finding the net after 20 minutes.
Feed by Manuel Lanzini from inside the left corner of the penalty area, Scamacca sliced inside defender Mikel Gonzales before shooting on target.
It was a rather consummate effort that wriggled through goalkeeper Kenan Piric’s grip as he came in.
Moments later Scamacca put the ball in the net again when he charged into a Lucas Paqueta through ball, but an offside flag interrupted the celebrations.
Larnaca then had a goal disallowed for offside, Nemanja Nikolic denied with VAR upholding the decision.
The visitors were reduced to 10 men just before the break, Gustavo Ledes seeing the red card for a foul on Pablo Fornals.
The Hammers promptly doubled their lead 90 minutes into the second half when Piric deflected Scamacca’s shot into the foot of Bowen, who finished at the far post.
And just two minutes later Bowen, omitted from the England squad on Thursday, scored the third goal with a bold header from Aaron Cresswell’s cross.
In the process Bowen became West Ham’s all-time top scorer in Europe with eight goals.
There was then a special moment for local boy Mubama, the 18-year-old scoring his first career goal with a fine header from Tomas Soucek to cap off a satisfying night’s work for Moyes’ men.
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