Safety Checklist:

Pre Match Suggestions

Is the goal firmly secured to the ground with anchors?
Is all connecting hardware (nuts, bolts, etc.) in place and secure?
Has the structural integrity of the goal been compromised (cracks in welds or posts, etc.)?
Is the goal on a level (flat) surface?
Check the net attachment system. If the attachments are anything other than Velcro or Net Clips, are there sharp edges?

If goals are to remain in the up-right position, make sure they are secured with ground anchors.
If anchored with portable style anchors, goals should be stored by being chained together face-to-face, or placed in a face-down position.
Remove the net when the goal is not in use.
Make sure that all connecting hardware (nuts, bolts, etc.) are in place and secure.
Check the structural integrity of the goal.
Never allow anyone to climb on the goals.
If goals are to be moved, exercise extreme caution and allow adequate manpower to move the goals.
Are warning labels visible and in good condition?

When the soccer season is complete, consider fully disassembling goals and storing them in the proper facilities.