A valuable element of Arsenal's resilience was the reliability of goalkeeper Petr Cech.
It was important to win after six games with the way we had been playing before," said the City manager.
Van Gaal had overseen United's longest sequences of matches without victory since 1990.
"I have had a chat with Klopp. I haven't had an offer as such, but the club have let me know they are keen for me to come back."
The former Red Eagles striker is currently the second top scorer in the league.
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