Hello: Just look at the NCAAF part of ESPN.com. Articles of many top 25 programs losing players to season ending injuries each week. IMHI, reason is three fold. 1) Players Playing way too many months per year. Same Mechanics, Muscles, Tendons being worked too darn much. Most premier athletes used to play 3 different sports, giving different parts of their bodies a rest. 2) Players are Bigger and Faster, but they're ACLs, etc. aren't getting any stronger, they're Tendons Not Muscles. 3) The Athlete Pool is decreasing as parents of young men are Balking at putting their children in harms way letting them play football. I see it at the local level, with most but the largest public high schools forming Co-op teams just to field a team.