Ten Hag told United's official website: “I think we should have scored earlier on, we had the chances and we had the control, and we create some good chances to score the third goal earlier on.
“Of course, we are happy when you bring a sub on who has an impact and he (Garnacho) was the one who downsized the opponent to 10 with a good action and then a good finish.
“I think also the rest (of Garnacho’s performance), I was happy with this sub and that is how players should act from the bench and we need more of this.”