Everton midfielder Diniyar Bilyaletdinov has admitted that it has taken time to fully adjust to the pace of the Premier League.
The Russia international made the switch to Merseyside from Lokomotiv Moscow in the summer and is still finding his feet in the North West.
Although Bilyaletdinov - nicknamed Billy by his team-mates - says he has not experienced any endurance problems on the pitch, he believes the mental aspect of the English game is the most challenging.
And he echoed the comments of French full-back Patrice Evra, who described his Premier League debut in the Manchester derby as "terrible - like being caught up in a washing machine".
"The mileage is probably the same, but the speed is different," he told The Independent.
"You need more concentration and attention. Every game is a hard game. It's fast. Not exactly like being in a washing machine, but something along those lines."
Bilyaletdinov will have to deal with the passion of an English derby himself when Everton host arch-rivals Liverpool at Goodison Park on Sunday.
The 24-year-old, who will be available for the clash after returning from suspension, admits that the experience will be a new one but says he has already been made well aware of how important the contest is.
"There are fans who come to watch us train and they tell me," he added.
"In Moscow nobody spoke about the game in the weeks before whereas here they are talking about this game the whole year around."