Radial Head Fracture

2 weeks ago I shattered my radial head.
I had surgery to have bone fragments taken out and a screw put in. Yesterday I was taken out of my soft cast and told to start moving it and rotating and come back in 3 weeks. Are there PT exercises I can/should be doing to get the range of motion back in my arm.
I cannot fully straighten my elbow and cannot fully rotate my arm.
I’m hoping it is still early enough that I can get full range of motion back so I can get back to playing ball which is how this happened and yes it is my shooting hand!