Understanding Tennis

when the lob goes up spin out and try to hit the overhead 

point the racquet tip to the ground to increase the low to high swing

keep the racquet in front of you setting the racquet at a 60 degree angle hitting the outside of the ball

get the back knee below the incoming ball

when you step up you need to track the ball in

when pulled in wide best response is to go down the line

if you can get back to absorb the incoming power

on the serve hit go up and out

on the serve one choice is to drop down on the start

on the follow through drive up and out

Sinner did get a knockdown of Monfils