At NFLEvolution.com, we have been following closely the progress of New York Jets cornerback Darrelle Revis’ recovery from knee surgery.

We have another update via Jets defensive backs trainer Will Sullivan. In an interview published Thursday in the Newark Star-Ledger, Sullivan said that he expects Revis to resume football-related activities in April.

“For me, I think I’m thumbs up in April, I’m going to get the green light (from Revis’ training staff) in April,” Sullivan told The Star-Ledger in a recent interview.

“The great thing is, there’s been no setbacks, it’s been a great surgery, he’s doing the right things — he hasn’t done too much, he hasn’t done too little. He’s doing just enough to make sure he’s cooperating with the doctor and physical therapist.

“Once I get the green light in April, it’s time to go hit it hard on the field, so I have to make sure we hit it in a progressive manner. … With him I have to start off with level one. It’s all about how he graduates from program to program.”

Despite the timetable, Revis’ return will be determined by his trainers in Arizona. That group has weekly conversations with the Jets trainers.

“You’ve got to be careful with him because you’ve got a history of bad hamstrings,” Sullivan said. “I remember when, I think when he was at Pitt and training for the draft, we were running around and it doesn’t take much for him to start straining that hamstring. And so I know for him, you always want to start off with the aerobic approach.”

Sullivan said the aerobic approach consists of more short-distance sprints, anywhere between 10-25 yard sprints with a short rest time.

– Bill Bradley, contributing editor