Everything will go wrong.
Cakengrad and The Mesozoic Mighty Men learned (the hard way) that single based player is all these filthy rats need. Just a push, and before you know it, Kummostern's RRMafia Mumblerats will squeak their way into the cage and punch your terrified ballcarrier!
Not that it matters though. The skink carrying the ball knows how to side step and will make sure the ball scatters into many tackle zones. That will make it safe enough, right? RIGHT?!