The Jets began rolling out their plan Monday for what they might do if cornerback Dee Milliner can’t play in the Sept. 7 opener against the Raiders. Milliner is dealing with some sort of sprained ankle.

It involved safety Antonio Allen and special teams ace Ellis Lankster working with the first team at cornerback, while Darrin Walls and Ras-I Dowling practiced with the second team. Lankster is a corner by name. Allen isn’t – at least not yet.

This is not an ideal situation, obviously. Rex Ryan would feel better if Dimitri Patterson, his other starting corner, can return from nagging (but allegedly non-serious) injuries to his quadriceps, ankle and calf. But Milliner is the Jets’ No. 1 corner for a reason. So there should be a significant level of concern with maybe losing him for an extended stretch.

One notable player was not in the mix at any of the outside corner spots Monday – former first-round draft pick Kyle Wilson.

Ryan said he is not locked in with using Allen and Lankster as the starting corners. Walls could certainly get a look – and perhaps Dowling, too. What about Wilson?