Real Sociedad of Spain drew with Manchester United 1-1 on Thursday at Anoeta Stadium in the first leg of the round of 16 of the European Football League.
Joshua Zirkzee opened the scoring for United just before the hour-mark in the round of 16 tie before hosts Sociedad were awarded a penalty following a handball by Bruno Fernandes 10 minutes later, Mikel Oyarzabal making no mistake from the spot.
“I think we played well until the penalty. But then the penalty, I think, changed a little bit the momentum of the game," Amorim told reporters.
Elsewhere Lyon defeated Steaua Bucharest 3-1 at Arena Nacional in the same round. AZ Alkmaar beat Tottenham 1-0 at the Avas Stadium and Rangers beat Fenerbahce 3-1 at the Fenerbahce Stadium.
The second leg matches of the round of 16 will be held next week.
Dimitrov marks return from pectoral injury with win in Paris
Real Madrid captain Carvajal faces knee surgery setback
Simeone and Baena strike as Atletico beat Betis to extend unbeaten run
Juventus sack coach Tudor after eight-match winless run
India's Iyer taken to hospital after fielding injury
