It’s a known fact that players take time to bed in.
Even if you sign a player from the same country and competition, your new acquisition needs a period of acclimatisation to get used to new tactics, teammates and a new home.
So when your club grabs a player from another country, patience is needed from us fans - normally - to see exactly what they bring to the table.
Top gear takes time, and the perfect circumstances are required.
Bernd Leno joined us in the summer and we were expectant. A full German international keeper, with a great pedigree, we waited at the start of the season as Cech started with the gloves.
Now though, Leno has the gloves, and he is showing us all what he can do.
His double save in our recent Premier League draw with spurs rightfully drew plaudits. His first was pure instinct, blocking a point-blank volley with his knee. the second though, was a thing of beauty. An outstretched glove, somehow denying a goal when the speed of the ball would have pummelled the net if most other keepers were in front of it.
Then, a week later, we defeated United. It was a fantastic performance, but we had Leno to thank for stopping United clawing themselves back into the game. He made about three or four good saves, but early in the second half, the impeccable timing of his run off his line, his decision-making to go low and thrust out his right leg was the reason Lukaku - all on his own and expected to score - didn’t equalise.
Two world-class saves in the space of a week. It isn’t just his show-stopping stops that make him a fine incumbent of our gloves. His calm demeanour and his success rate on aerial balls so far this season is a fine foundation for our team. Yes, he has fluffed his lines occasionally when bombarded in the air, but overall - it is a great first season for Leno.
We have fond memories of German keepers, with Invincible Mad Jens Lehmann doing us proud between the sticks, and Leno is proving that efficiency is a German trait.