The Jets’ suspect secondary suffered two blows Sunday, raising even more questions about the weak link of Rex Ryan’s defense.

Dee Milliner is expected to miss a few weeks with a high ankle sprain, according to a source, and rookie Dex McDougle tore his ACL, bad news for a team that already looked vulnerable in the secondary.

Veteran Dimitri Patterson missed practice for a second consecutive day with calf/ankle injuries, leaving Ryan without three of his top four cornerbacks. Kyle Wilson, Darrin Walls, Ellis Lankster and Ras-I Dowling are the top four healthy cornerbacks on the roster for now.

The Jets reached out to 33-year-old free-agent cornerback Asante Samuel, who won two Super Bowls with the Patriots, but it’s unlikely they’ll sign the four-time Pro Bowler, according to a source. The Jets, who have more than $20 million in salary cap space, are expected to sign a younger player.

“I’ve had to deal with those kinds of situations in the past,” Ryan said after practice. “Adversity to some comes opportunity for others…. We’ll be able to play defense. We have a lot of good football players. So we’ll be fine…. I’ve been talking about our depth. And now we’ll get to see it.”