Cowboys veteran center Matt Hennessy to undergo neck surgery, opening door to an offseason shakeup

The Dallas Cowboys’ offseason has been hit with another health-related planning challenge, with reports that offensive lineman Matt Hennessy will undergo neck surgery after a disc issue was identified. Cowboys head coach Brian Schottenheimer said the procedure is the reason Hennessy will be unavailable for at least the beginning of training camp, according to coverage relayed by ESPN’s Todd Archer. The update matters most because the Cowboys have been leaning on internal continuity along the interior line, particularly at center, as they prepare for the grind of the regular season.

The injury description that’s been associated with the plan is not a vague “upper-body” matter but a specific disc problem that will require surgery. That detail is significant because disc-related issues can affect timelines in ways that are harder to predict than minor soft-tissue injuries. As noted by Calvin Watkins of the Dallas Morning News, there is no clear timetable for a return, meaning the team’s training-camp and preseason reps will likely be shaped by whoever can most reliably handle center duties day to day.

Hennessy’s role also sharpens the ripple effect. He has been primarily a center throughout his NFL career, providing experience and the kind of positional familiarity that tends to be valued when teams are sorting out depth. The Cowboys signed Hennessy earlier in free agency to add veteran interior depth, and the reported scope of his absence creates a more immediate question: who absorbs the next wave of reps if Dallas needs cover beyond its current starter and the backup plan at the position.

According to reporting that outlined the Cowboys’ internal depth picture, Cooper Beebe has operated as Dallas’ starting center for the past two seasons. With Beebe already established in the role, Hennessy’s surgery shifts attention toward the rest of the depth chart, including whether the team can rely on internal flexibility or whether additional reps must be distributed across multiple linemen to keep the offense organized. If the recovery stretches into the early part of the campaign, that would force the Cowboys to manage the center position with extra care and redundancy.

This comes at a time when Dallas’ offensive line already carries its own competition questions. Reporting around the team’s offseason has pointed to a contest for the left tackle spot, with Tyler Guyton and Nate Thomas competing for the opportunity. Even if that competition plays out independently of Hennessy’s recovery, his absence can still alter how coaches allocate practice reps across the front, because interior line stability affects protection calls, chemistry, and the ability to execute when formations shift late in the play.

For Hennessy personally, the next steps will revolve around recovery rather than football. With the team placing him on the active/PUP list for the portion of camp that falls after surgery, the immediate focus becomes medical progress and the eventual ability to return to functional football conditioning. Without a timetable, Dallas may take a cautious approach to workload, which can affect how quickly the interior depth group is able to build long-term patterns during the later summer practices.

What to watch next is how the Cowboys structure their center depth during camp and preseason, including whether Beebe’s backup plan is defined early or remains fluid. In addition, keep an eye on how the offensive staff uses cross-training among linemen to preserve continuity at the position, because even a short-term gap in center options can influence snap timing, protection communication, and red-zone execution. The surgery is a single roster event, but its practical impact will be measured in reps, assignments, and whether the interior line can stay fully aligned as the Cowboys move toward the first regular-season decisions.