Recruits:

If you have had a long layoff from injury and your game fitness is subpar, it will affect the recruiting process if you don’t indicate that in the emails you send coaches. Coaches understand injuries are part of playing. Be transparent in your communication with coaches on the front end. 
So much easier to let them know and then build off that vs. having a bad game where your fitness is not up to par and having to explain later when they have crossed you off.