Can a soccer player play with a cast on with pins in after surgery for a colles fracture? how long of a return timetable?

Not a great idea: I wouldn't recommend it to any of my patients except in unusual circumstances with any fall there is a chance you could cause further damage or change in position of the fracture or in the fixation pins would wait until the cast is off and then play with a splint or wrapping by trainor.

Unlikely, should not: If the fracture was severe enough to require surgery, then it would not be wise to risk a fall and waste the progress already made. These fractures typically take 6-8 weeks to heal with fixation, followed by a short period of bracing for rigorous (soccer-like) activity. I would trust your surgeon's judgement on the return date as they would know the severity of your injury.