The Jets are looking to corner the market on defensive backs. Eagles free agent Cary Williams flew into New York late Friday night and plans to remain in town until Sunday morning, a source told Newsday.

Williams was scheduled to meet with "everyone" in the building while in town.

It's no secret the Jets are desperate for cornerback help. And on Saturday, they lost out on one of their free-agent targets.

Kareem Jackson re-signed with the Texans, getting a four-year, $34-million deal that includes $20 million guaranteed, a source confirmed. The Jets had their eyes on the versatile cornerback, a first-round pick of the Texans in 2010. New Jets general manager Mike Maccagnan was a member of Houston's organization at the time.

The Houston Chronicle reported that Jackson also drew serious interest from the Eagles.

According to a source familiar with the situation, it wouldn't have mattered if Maccagnan & Co. had matched the Texans' offer. Jackson wanted to remain in Texas.

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"To get something done and to get it done here in Houston. My heart was definitely here," he told ESPN.com Saturday.

Now, with Jackson officially off the market, the Jets will have to turn their focus elsewhere.

Though Williams, 30, spent several hours at their facility in Florham Park, New Jersey, it's too early to know whether they'll be able to land him. He already has met with the Seahawks and is scheduled to visit the Titans after he wraps up his meetings with the Jets.

According to the Baltimore Sun, Williams also is interested in possibly returning to the Ravens, the team with which he won a Super Bowl in 2012.

In an attempt to clear cap space, the Eagles released him Tuesday. He had two interceptions and nine passes defensed in 2014.

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The Jets also have their eyes on former Seahawks cornerback Byron Maxwell and former Jets Darrelle Revis and Antonio Cromartie. As the most sought-after free agent of the group, Maxwell is expected to break the bank, and he's sure to use Jackson's deal as leverage. The Eagles reportedly are making a strong push for him.

Cromartie has the most familiarity with new Jets coach Todd Bowles, having spent the 2014 season playing for him with the Arizona Cardinals.

Though Revis isn't scheduled to become a free agent on Tuesday, there's a good chance he is headed that way. The Super Bowl champion Patriots won't bring him back at a $25-million cap hit, meaning they'll release him if Revis' representatives don't agree to a contract renegotiation.

Brandon Flowers also has drawn interest, but he's expected to re-sign with the Chargers.