Despite slipping four points behind Arsenal in the race for a Champions League spot with just two games to play, Osman claims that the Toffees will be fully focussed as they look to help rivals Liverpool in a match against one of their title rivals.
"We're professionals and it's what we do," the midfielder told reporters. "It's a big game at Goodison and we want to enjoy it and win it.
"City needed to rely on a slip-up by Liverpool to give them a chance so they're probably favourites now and it's up to us to stop them.
"A lot of clubs will be watching this game very closely but we've got to put all that out of our minds and do what we always do and go into the game to win."
Everton's Champions League hopes were dealt a blow last Saturday in a 2-0 loss to Southampton.