a man dressed in all white on a tennis court holding a tennis racket
is it daytime
yes
is it a pro match
possibly
is the ground visible
yes
is it green
yes
are the lines visible
yes
is the net visible
no
are there other people
can't see
is the sky visible
no
what's in the background
a green screen
is the ball being served
he's standing at a stance so i don't know