The New York Jets might be trying to end one of the offseason's most notable holdouts by trading for Khalil Mack.

The team has reached out to the Oakland Raiders to express interest in the disgruntled defensive end, sources told Manish Mehta of the New York Daily News. However, the Jets haven't made an official offer yet.

More than a dozen teams have inquired about Mack's availability, sources told Mehta, with several reaching out on multiple occasions. The Raiders are continuing to tell interested parties that they won't part with their star defender.

Mack, a three-time Pro Bowler and two-time All-Pro, is entering the final year of his rookie contract in 2018. If he doesn't get a new deal, the 27-year-old will carry a cap hit of $13.8 million.

The fifth overall pick of the 2014 draft has remained away from the Raiders throughout the offseason, with his official holdout reaching its 27th day on Wednesday.