nice picture, in my view the perspective seems slightly adrift (on the court markings), if you use ps-edit-transform-perspective then drag the bottom left corner outwards and downwards.
this will bring the court markings to a level,
or you could tilt the picture to level the markings/back wall then transform the top corner to straighten the net/doors. did you use more than one set of pics to make the photo ?
i tried it once with a ballerina jump but ran out of patience.lol. cheers martyn