Malik Jackson had his hands on Indianapolis quarterback Jacoby Brissett and couldn’t quite get him to the ground. Yannick Ngakoue also had an opportunity in the backfield and barely missed his chance to register a sack. But there was no stopping Calais Campbell. Continuing what has been a dominant first season with the Jaguars, Campbell set the franchise single-season sack record (12 1/2) when he wrangled Brissett to the turf for a loss of 10 yards late in the first quarter of a 30-10 victory Sunday at EverBank Field. The sack moved Campbell past Tony Brackens, who set the previous franchise mark of 12 sacks during the 1999 season. “It’s awesome to watch,” Jackson said of Campbell, the 6-foot-8, 300-pound game-changer who often lines up next to him. “I’m upset it took him so long. He’s been working so hard. Just to be a part of that and see it for myself in person, it’s a blessing.” A blessing that has been felt again and again. Campbell, who signed a four-year, $60 million contract in March, became a fan favorite before he played his first home game with the Jaguars. He became the first player in team history to record four sacks in a game during a season-opening win at Houston and has hardly slowed since then. Counting Sunday, Campbell has at least one-half sack in nine of the team’s 12 games.