Another win over a player ranked a long way ahead of him.
And he deserved to win.
I'd be really curious to know if he's got a new coach, or a new joint coach - watching him this today, there are several things in his game that have really changed .... maybe just normal development or maybe a new voice. Because it doesn't have a JTC look to it. (I would have said European in style, even before the shouting to the possibly Russian guy in his camp). Might be quite wrong, of course....
I noticed him doing that during the British indoor events! Very clever because he could say something really rude and no-one in this country would know what he was saying!!!