The Leeds boss has been discussing his Italian goalkeeper's injury status.
Indeed, Silvestri - a member of the infamous 'injured six' who withdrew from Redfearn's squad on the eve of the Championship clash with Charlton Athletic - is still out injured with a back problem.
He consequently missed out on Leeds' win over Sheffield Wednesday, where veteran Stuart Taylor took his place in between the sticks.
Silvestri will need another week of training to monitor how his condition improves, Redfearn says, and has the worst thing possible for a goalkeeper.
Asked if Taylor was picked because of form, the 49-year-old replied: "Marco's had a back problem. For a goalkeeper, it's the worst thing you could have. We've got to be careful with Marco. He probably needs a week's training to get him confident with what he's doing."
Leeds fans produced an uneasy reaction as Silvestri - one of their more loyal players this season - pulled out injured and stuck a picture of his scar up on Twitter following an on-pitch clash with Norwich City striker Cameron Jerome.
It's fair to say most supporters were unconvinced but Leeds legend Nigel Martyn offered the Italian his backing, suggesting a spinal injury requires caution for a shot stopper.
Redfearn's quotes have now pretty much backed that theory up.