Let's take a look at Roger before he joins the loser train:
Poor guy doesn't know he's one day away from losing to Tsonga. Again.
Okay, good. He looks serious again.
And he's even sweating. A lot. Which means that he must be working hard.
Looking good. But...
...now he's smiling again.
Hey Paul, perhaps your pupil needs to do a little less smiling and a little more winning. Just saying.