Mauricio Pochettino admits he is expecting a tough game for Tottenham Hotspur against an Arsenal side whose culture he feels has changed completely under new boss Unai Emery.
Tottenham are due to lock horns with their north London rivals at the Emirates Stadium on Sunday in a Premier League clash which could have an influence on both sides' top four aspirations.
Arsenal have entered a new era under Emery after Arsene Wenger left the stage and Pochettino has been impressed by the work done by a manager he rates highly.
Pochettino is expecting a tough encounter against a team different from that put on the pitch by Wenger, as he feels Arsenal's culture has changed under Emery.
The Tottenham boss told his pre-match press conference: "Of course after Wenger era always when this situation happens with a new manager arriving things change in the club.
"I have a very good relationship with Unai, he is a great manager, he’s doing a fantastic job there.
"Of course Arsenal have always been a good team with very good players and unbelievable management from one of the greatest managers ever.
"Now it is a completely different culture with a manager who is Spanish.
"It will be tough because they are doing a good job from the beginning of the season and signed very good players too.
"I think the squad has very good quality and it will be tough", Pochettino added.
Arsenal were in Europa League action on Thursday night, but Emery rested a number of first team regulars to make sure they are fresh.
