He's got a back injury (though minor) and has had a torn ACL injury before , two of the worst injuries to have especially in NFL

2 guys who come to mind who suffered back injuries and never be the same ,

Gronk

And Tiger Woods , shout out to him ,

Both were dominant before but after , they weren't the same , only thing going for Farley is he's still young so maybe he can shake it off , but it's quite concerning for me with those 2 injuries , don't be surprised if he drops out of 1st round