Everton manager David Moyes believes Tim Cahill's influence at the club is growing with each game.
The Australia international was again the match-winner for The Toffees on
Wednesday when he scored late on in Everton's 1-0 win over Zenit St Petersburg.
The win secures top spot in Group A for Moyes' side and the former Preston boss says Cahill's goal-scoring ability is natural, not tactical.
"Tim popped up again with the winner, but that is what he does. I don't send him out telling him to score goals, he just does that anyway," said Moyes.
"It was Tim who forced their player into the offence that won us the penalty, and then he was there on the line to force the ball home when everyone else had stopped.
"He always goes out to score, he always wants to score. He is a very important player for us and his influence is growing game by game."
Zenit played for much of the game a man light after Nicolas Lombaerts' apparent hand ball and Moyes has conceded the referee did get it wrong.
"The penalty was a bit harsh, but we are having trouble with them at the moment, they just won't go in, it's the third we have missed in the competition," he continued.
"But they were unlucky with the penalty and the sending off, at the time I could not see it but now I have watched the replay on TV the ball looked to hit the lad's body, it didn't look like hand-ball.
"But we deserved to win. We hit the post and had plenty more chances. But we were the better side and deserved to go through.
"If we keep playing as well as we are, with the tempo and movement, we will continue to do well. But we won't get carried away. We are, though, enjoying ourselves and there is a lot more to come."