West Ham beat Silkeborg to maintain their 100% win record in Europe this season to reach the last 16 of the Europa Conference League.
Manuel Lanzini’s penalty after Micheal Antonio was brought down by keeper Nicolai Larsson ensured the Hammers qualified with a game to spare.
In last season’s Europa League semi-final, Algerian winger Said Benirhama and Spain midfielder Pablo Fornals both went close to extending the lead against the Danish visitors.
West Ham keeper Alphonse Areola was forced into a fine save to keep out Soren Tengstad in the second half.
With one round of games to go, David Moyes’ side cannot go top of Group B.
He has 15 points from five games, nine more than second-placed Silkberg.
West Ham’s final group game is away to FCSB, who are bottom of the group with two points, in Romania on November 3 (20:00 GMT). Meanwhile, Silkeborg entertained third-placed Anderlecht with five points.
