The Toffees boss has stated that the Argentine has fitted in well at Goodison Park.
Everton boss Roberto Martinez has praised summer signing Ramiro Funes Mori, stating that the versatile defender has made a positive early impression at the Premier League club, as reported by The Liverpool Echo.
The former River Plate centre-half moved to Merseyside for a £9.5 million fee over the off-season and has put in a number of impressive performances for his new club so far.
With John Stones unavailable for the derby fixture against Liverpool last time out, Funes Mori partnered Phil Jagielka at the heart of the Goodison Park rearguard and looked assured and comfortable on the ball.
Although the South American will have a battle on his hands to hold down a regular position in the starting XI when everyone is fit, Martinez has been impressed with what the Argentine has brought to the club.
“Ramiro is enjoying his football but we need to measure how the travelling is going to affect him because this is the first time he will have had a long journey before preparing for a game,” Martinez is quoted as saying by The Liverpool Echo.
“He was outstanding last night against Paraguay, helping his team to get a clean sheet after a very difficult game against Ecuador.
“He was excellent against Liverpool and that is what we were expecting. He is a player who has been brought up with the raw emotions of derbies and big football occasions. He showed everyone that he is ready and I thought his performance was immaculate.
"To be able to cope from a psychological point of view was a real test but his performance was really impressive.
“We worked so, so hard in the summer to assemble a strong squad and that competition for places is going to be really, really helpful.”
Everton host Manchester United at Goodison this weekend with it remaining to be seen just where Funes Mori will continue at the heart of the home team’s defence.
The Toffees have had a positive start to the new season and have shown that they can go toe-to-toe with the best in the league so far in 2015-16.