Manchester United manager Louis van Gaal has described Arsenal as the best "technical and tactical" team in the Premier League ahead of their meeting on Sunday.
The league leaders travel to the Emirates Stadium for a crucial clash and the Dutchman acknowledged the quality of his side's opponents.
"Arsenal are technically and tactically the best team in the league," said the 64-year-old.
"Nevertheless, they haven't won so much, so you have to look for that improvement with that team.
"We are happy but I think Arsenal can come back from a defeat. They have shown that a lot of times."
"The solution is recovery, recovery, recovery," he continued. "That is why it is so difficult to prepare for the match against Arsenal.
"We have to see how the evaluation is from my fatigue specialist."
He added: "Carrick can play so I have a choice. I am happy to say that there are no injuries from Wednesday night."
