Hi,
If you get the ok on thursday to play, then you should be fine to play friday, however if you've played no matches since you broke your leg you are unlikely to be match fit, although you may have performed sports specific drills its never quite the same as playing a competitive match. I would suggest playing in a couple of 'friendly' matches first if possible.

Also, the worst that could happen if you take another blow to the leg is another fracture. However, providing your healing and rehab program have been completed, you are no more likely to sustain a break of that bone again, than any other bone.

Make sense?!

hope that helps,

Heidi