Bournemouth boss Andoni Iraola says winning at Manchester United came from playing off the break.
The Cherries stunned United 3-0 at Old Trafford on Saturday.
"When you come to a stadium like this you know they're very strong, especially in wide areas, full-backs overlapping and underlapping, wingers very dangerous in one-v-one, you know you have to be very sharp in your own box, clearances, blocks," said Iraola.
"But they send a lot of players forward so you will get spaces. In this kind of open game when you know there will be chances for both games, we spoke at half-time and needing more goals if we want to win.
"When you send so many threats it's a matter of numbers, you have situations to attack 2-v-2, 3-v-2, 3-v-3, we were good in these moments. We knew they would make our wingers run backwards, but we knew when we could recover high our forwards would have space.
"We knew in transitions we would have our chances and we took them."