How do I keep the basketball pole still while the cement is drying?

Im planning to dig a hole and put our portable basketball into the ground and cement it. How do i keep the basketball pole from moving while the cement is drying? Thanks.|||Rig angle supports from four sides attached to each other at the pole and secured by stakes at the ground. Self taping screws would also help you secure the angle braces to the pole. Place the pole by itself and then attach the backboard and rim after so that the weight of the goal doesn't affect setting the pole.|||I would recommend having someone do it for you.