Jarrod Bowen scored his 14th goal of the season in all competitions, four more than any other West Ham playerTen-man West Ham kept their hopes of reaching a first European semi-final since 1976 alive by battling to a draw in the first leg of their Europa League quarter-final with Lyon at London Stadium.
Aaron Cresswell's red card for bringing down visiting skipper Moussa Dembele when he was the last man in first-half stoppage time changed the complexion of a tie that David Moyes' men were starting to grow into.
Despite the setback Jarrod Bowen put the Hammers in front seven minutes after the re-start when he seized on a Jerome Boateng mistake in his own box and finished on the turn.
But it was a rare glimpse of goal for the home side, who were forced to defend for long periods. Their defences were eventually breached by on-loan Tottenham midfielder Tanguy Ndombele, who tapped home from close range after the ball had been deflected into his path.
Alphonse Areola denied Emerson with a decent save as Lyon searched for a winner but West Ham held firm, with Craig Dawson particularly impressive in their rearguard action.
If there is any consolation given how the game unfolded, it is that the Premier League side are still in with a chance, unlike the last occasion West Ham reached a European quarter-final, when they were beaten 4-1 in the first leg at home by Dynamo Tblisi in 1981.
More to follow.
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West Ham United
Squad number13Player nameAreola
Squad number24Player nameFredericks
Squad number15Player nameDawson
Squad number4Player nameZouma
Squad number3Player nameCresswell
Squad number28Player nameSoucek
Squad number41Player nameRice
Squad number20Player nameBowen
Squad number8Player nameFornals
Squad number22Player nameBenrahma
Squad number9Player nameAntonio
Squad number31Player nameJohnson
Lyon
Squad number1Player nameLopes
Squad number17Player nameGusto
Squad number27Player nameBoateng
Squad number4Player nameLukeba
Squad number3Player nameEmerson
Squad number15Player nameFaivre
Squad number23Player nameThiago Mendes
Squad number28Player nameNdombele
Squad number8Player nameAouar
Squad number10Player nameLucas Paquetá
Squad number9Player nameDembele
Squad number5Player nameDenayer
Squad number7Player nameToko-Ekambi
Squad number20Player nameTetê
Line-ups
West Ham
Formation 4-2-3-1
13Areola
24Fredericks15Dawson4Zouma3Cresswell
28Soucek41Rice
20Bowen8Fornals22Benrahma
9Antonio
13Areola24Fredericks15Dawson4Zouma3CresswellBooked at 45mins28Soucek41Rice20BowenBooked at 90mins8Fornals22BenrahmaSubstituted forJohnsonat 45'minutes9AntonioBooked at 88minsSubstitutes
1Fabianski5Coufal7Yarmolenko11Vlasic16Noble23Diop26Masuaku31Johnson33Král35Randolph42Alese64PerkinsLyon
Formation 4-4-1-1
1Lopes
17Gusto27Boateng4Lukeba3Emerson
15Faivre23Mendes Ribeiro28Ndombele8Aouar
10Tolentino Coelho de Lima
9Dembele
1Lopes17Gusto27BoatengSubstituted forToko-Ekambiat 64'minutes4Lukeba3Emerson15FaivreSubstituted forCardoso Lemos Martinsat 63'minutes23Mendes RibeiroSubstituted forDenayerat 90'minutes28Ndombele8Aouar10Tolentino Coelho de Lima9DembeleSubstitutes
5Denayer7Toko-Ekambi11Kadewere12Silva Milagres14Dubois20Cardoso Lemos Martins21Da Silva22Reine-Adélaïde26Barcola30Pollersbeck40BonnevieLive Text
Match ends, West Ham United 1, Lyon 1.
Second Half ends, West Ham United 1, Lyon 1.
Attempt blocked. Jason Denayer (Lyon) left footed shot from outside the box is blocked.
Jarrod Bowen (West Ham United) is shown the yellow card for a bad foul.
Emerson (Lyon) wins a free kick in the defensive half.
Foul by Jarrod Bowen (West Ham United).
Attempt missed. Moussa Dembele (Lyon) header from the centre of the box is too high. Assisted by Malo Gusto with a cross.
Substitution, Lyon. Jason Denayer replaces Thiago Mendes.
Attempt saved. Lucas Paquetá (Lyon) header from the centre of the box is saved in the top centre of the goal. Assisted by Tetê with a cross.
Michail Antonio (West Ham United) is shown the yellow card for a bad foul.
Tanguy Ndombele (Lyon) wins a free kick in the defensive half.
Foul by Michail Antonio (West Ham United).
Attempt missed. Lucas Paquetá (Lyon) left footed shot from outside the box misses to the right.
Foul by Houssem Aouar (Lyon).
Ryan Fredericks (West Ham United) wins a free kick on the right wing.
Attempt missed. Karl Toko-Ekambi (Lyon) right footed shot from outside the box is too high. Assisted by Lucas Paquetá.
Foul by Houssem Aouar (Lyon).
Tomas Soucek (West Ham United) wins a free kick in the defensive half.
Attempt saved. Emerson (Lyon) left footed shot from the left side of the box is saved in the centre of the goal. Assisted by Tetê.
Attempt blocked. Karl Toko-Ekambi (Lyon) right footed shot from the left side of the box is blocked. Assisted by Moussa Dembele.
