Jose Mourinho has endured a toxic rivalry with Arsene Wenger since he first came to England with Chelsea in 2004.
The pair could be seen trading insults. Mourinho used to brand Wenger “a specialist in failure” and a “voyeur”, while Wenge called him “stupid”.
However, everything ends in some point and Mourinho has admitted that he regrets for the verbal abuse ahead of Sunday’s clash between Manchester United and Arsenal.
“There are little things where it would be obviously better without them,” said Mourinho.
“Some gestures, some words, it would be better without it, I feel better now without it, no doubts about it.
“But again, when I arrived in England in 2004, Arsenal were the champions and the famous Invincibles. I arrived and for the next couple of years was with them - Bergkamp, Thierry, Campbell, an amazing team - so again thank you very much for that.
“We had big matches, big fights, so thank you so much for that. Regret? Little negative episodes, yes I do and probably he also does.
“I always feel the biggest rivals are our biggest friends, because they're the ones that pushed us to the limit and I think United fans know that, until 2004, for about a decade it was between United and Arsenal, it was between Sir Alex Ferguson and Mr Wenger, and I think that these great teams Arsenal had and the fight shoulder to shoulder,” Mourinho added.