Houston Texans coach Bill O’Brien confirmed Friday that star defensive end J.J. Watt will miss the rest of the season after back surgery.

The three-time NFL Defensive Player of the Year had surgery Thursday, a day after he was placed on injured reserve.

On Friday, O’Brien answered a simple “yes” when asked if Watt would miss the rest of the season.

The 27-year-old Watt has started 83 straight games since he was drafted in the first round in 2011.

The four-time Pro Bowler has been a force since entering the league not only because of his pass-rushing prowess, but also because of his uncanny ability to swat down passes. He has 45 passes defended in his six-year career. He has forced 15 fumbles and recovered 13.

League fines Norman

In a Giants-Redskins game in which the officials were watching every interaction between Josh Norman and Odell Beckham Jr., it was another Giants receiver who wound up taking a big hit and costing Norman nearly $50,000.

Norman was fined $48,620 for his illegal hit on rookie Sterling Shepard in the fourth quarter of last week’s game against the Giants, the league confirmed Friday. Shepard bounced right up and flexed his arms to show the hit did not affect him, and the play also drew a 15-yard penalty.

Oher gets ruled out

Panthers left tackle Michael Oher was ruled out for Sunday’s game against the Atlanta Falcons after developing concussion-related symptoms two days before the game.

Oher practiced fully on Wednesday and Thursday and the team is uncertain when the injury occurred. He didn’t feel well on Friday morning and was diagnosed with a concussion.

Panthers coach Ron Rivera says it’s unclear who’ll take over for Oher at left tackle. The most likely option is moving right tackle Mike Remmers to the left side and starting second-year player Daryl Williams at right tackle.

Bryant is questionable

Dez Bryant is questionable for Dallas’ game against San Francisco, and remorseful about going AWOL on the Cowboys early in the week over fear about his knee injury.

The 2014 All-Pro receiver didn’t practice all week after sustaining a hairline fracture in a bone in his right knee in last week’s win over Chicago. He was officially listed as questionable Friday.

Owner Jerry Jones said on his radio show Friday that an X-ray the night of the game revealed the hairline fracture, and Bryant missed a follow-up MRI on Monday and team meetings Tuesday because he didn’t want to get some bad news.

Bills lose Watkins

Buffalo Bills receiver Sammy Watkins will miss at least eight weeks resting an injury to his surgically repaired left foot after the team placed him on the reserved-injured list.

The Bills announced the move on Friday afternoon, a few hours after coach Rex Ryan expressed “major concern” over the receiver missing significant time.

Watkins was already ruled out from playing on Sunday, and missed last weekend’s game against Arizona.

Charles out on Sunday

The Chiefs listed Jamaal Charles as questionable for Sunday night’s game at Pittsburgh, while fellow running back Charcandrick West was ruled out with an ankle injury.

Chiefs coach Andy Reid said Friday that how well Charles comes out of the final practice of the week would dictate whether he makes his season debut. The four-time Pro Bowl selection has not played since Week 5 last season, when he tore the anterior cruciate ligament in his right knee.