Sanchez cut by Denver and signs with Dallas

Veteran quarterback Mark Sanchez, Denver’s biggest off-season acquisition, didn’t make the roster Saturday, saving the Broncos $3.5 mil- lion and a seventh-round draft pick.

Sanchez quickly agreed to a deal with Dallas, whose starter, Tony Romo, is expected to miss the early part of the season with a broken bone in his back. Sanchez will back up rookie Dak Prescott, the Cowboys said.

Vikings get Bradford

Philadelphia traded quarterback Sam Bradford to Minnesota for a first-round draft choice in 2017 and a fourth-rounder in 2018. Bradford replaces Teddy Bridgewater, out for the year after suffering a knee injury this week. Backup Chase Daniel and No. 2 overall pick Carson Wentz are the candidates to start for the Eagles.

Police may boycott 49ers

The Santa Clara police union said its officers may stop working San Francisco 49ers home games amid quarterback Colin Kaepernick’s refusal to stand during the national anthem, a move he characterized as a protest against police brutality and racial injustice. Kaepernick also has worn socks that depict officers as pigs.

Also Saturday, Coach Chip Kelly announced that Kaepernick had made the final 53-man roster as backup to Blaine Gabbert.

Etc.

Cleveland traded cornerback Justin Gilbert, the No. 8 overall pick in 2014, to Pittsburgh for a sixth-round draft pick in 2018 . . . . Green Bay released three-time Pro Bowl offensive lineman Josh Sitton, who had started 112 of 121 regular-season games since being drafted in 2008 . . . . The New York Jets cut ties with two high draft picks once considered future cornerstones of the franchise, cornerback Dee Milliner, No. 9 overall in 2013, and tight end Jace Amaro, a second-rounder in 2014 . . . . Baltimore cut former Pro Bowl running back Justin Forsett .... Dallas placed Darren McFadden, its leading rusher in 2015, on the non-football injury list with a broken right elbow. He’ll miss at least six games . . . . Kansas City traded receiver Rod Streater to San Francisco for an undisclosed draft pick, cut quarterbacks Aaron Murray and Kevin Hogan, a rookie from Stanford. . . . Houston activated star defensive end J.J. Watt from the physically unable to perform list. He had back surgery in July . . . . Oakland traded safety Dewey McDonald to Seattle for a conditional draft pick, and kept four undrafted free agents on their 53-man roster, running back Jalen Richard, defensive lineman Darius Latham, receiver Johnny Holton and cornerback Antonio Hamilton . . . . Receiver Marc Mariani and running back Jacquizz Rodgers were among the Chicago Bears’ cuts.