Texans star J.J. Watt wants to thank Titans controlling owner Amy Adams Strunk before Houston’s game with Tennessee for being one of the first big donors to his Hurricane Harvey relief fund.

Watt has 15½ sacks in 10 career games against Tennessee.

“I’m going to tell her beforehand I apologize for whatever happens on the field, but I appreciate the donation nonetheless, and I hope the check still clears,” Watt said.

Strunk gave $1 million to Watt’s relief fund.

NFL probing threats

The NFL said Friday it is investigating death threats against Pro Bowl tight end Delanie Walker of the Tennessee Titans and his family because of his protests during the national anthem.

Walker disclosed the threats Thursday in a social media post. Walker told fans upset by the protests that they didn’t have to go to the games if they felt disrespected.

“[We] have turned it over to the NFL, and will let them deal with it,” said coach Mike Mularkey, who praised Walker for his play and his character.

Fine over dog dance

New York Giants wide receiver Odell Beckham Jr. has been fined $12,154 by the NFL for his dog-like touchdown celebration last Sunday.

Beckham got down on all fours and pretended to urinate like a dog after catching a fourth-quarter touchdown pass in a loss to the Eagles. He was penalized for unsportsmanlike conduct.

Vegas chief: Cops clear

The head of Las Vegas police says officers acted appropriately and professionally detaining Seattle Seahawks defensive end Michael Bennett after a report of gunfire at a club on the Las Vegas Strip.

Clark County Sheriff Joe Lombardo said Friday that reviews of hundreds of videos found no evidence that officers racially profiled Bennett or used excessive force.

Lombardo says nothing has been found to support Bennett’s allegation that an officer put a gun to his head and threatened to blow his head off.

Not guilty plea in Calif.

Los Angeles prosecutors say Oakland Raiders cornerback Sean Smith pleaded not guilty to beating his sister’s boyfriend.

Smith is accused of beating the man and stomping on his head July 4 in Pasadena. Smith is due back in court Nov. 6.

49ers sign ex-Brown

The San Francisco 49ers have signed cornerback K’Waun Williams to a three-year extension.

Williams has 14 tackles and two passes defensed in three games this season. He entered the league in 2014 as an undrafted free agent in Cleveland. He had 69 tackles with 10 passes defensed, three forced fumbles and two fumble recoveries in two seasons with the Browns.

Around the league

The unbeaten Falcons will be without four starters Sunday: Ricardo Allen, Vic Beasley Jr., Ryan Schraeder and Courtney Upshaw. ... Bills left tackle Cordy Glenn will not play. ... Packers receiver Davante Adams tweeted he was “feeling great” a day after taking a big hit from Bears linebacker Danny Trevathan.