Sources - Bengals' Trey Hendrickson to have core muscle surgery - ESPN

CINCINNATI — Bengals defensive end Trey Hendrickson will likely miss the rest of the season after undergoing core muscle surgery later this week, sources told ESPN's Adam Schefter on Monday.

The reigning All-Pro selection is dealing with an undisclosed issue that has sidelined him for the past five games. Earlier in the day, Bengals coach Zac Taylor said Hendrickson was seeing a specialist to gather more information on the issue that has impacted his season. That meeting indicated that a procedure will be required after rest and rehab did not repair the injury, the sources told Schefter.

The surgery is expected to sideline Hendrickson approximately six weeks, the sources told Schefter, and likely ends a season that has not been a pleasant one for all parties involved.

In Week 6 against Green Bay, Hendrickson suffered what was initially termed as a back injury. He did not return for the second half of the team's loss to the Packers. He missed the Bengals' following game against the Pittsburgh Steelers. The injury's diagnosis was changed to a hip issue, according to Cincinnati's injury report.

In Week 8, Hendrickson was limited at the first two practices, missed the final practice of the week and was officially listed as questionable for the home contest against the New York Jets. Hendrickson played but reaggravated the injury in the first half and missed the entire second half of the 39-38 upset defeat.

Hendrickson has not played or practiced since that game. And since then, there has been little clarity on his injury status moving forward.

Hendrickson has not been spotted at practices during periods open to the media. At the beginning of recent weeks, Taylor has immediately declared Hendrickson as doubtful to play before