As came out of discussion from this thread
(192647.66) Currently, injuries only appear to occur when a flagrant foul occurs by opposition player.
It is suggested by the masses, that the injury occurance type be modified, such that a player can sustain an injury by other means, other than flagrant fouls.
eg1: There is a scramble for the ball, team X win the ball, but player Y sustains injury.
eg2: Player X drives inside, is injured on the play (no foul occurance)
Frequency of injuries should remain the same as current.
As a secondary suggestion of my own, injury frequency could also be increased/decreased by a players game shape. (If this does not occur already). Lower game shape = higher injury frequency.