Vikings extend offensive line leader Brian O’Neill, add veteran Jamal Adams to bolster their defense

(AP) — The Minnesota Vikings were plenty busy as players reported for training camp on Tuesday, giving right tackle and offensive line leader Brian O’Neill a big contract extension and adding 10th-year veteran Jamal Adams to bolster their depth on defense. The most consequential camp development was still waiting to unfold, with quarterbacks Kyler Murray and J.J. McCarthy set to take turns with the first team offense during the first practice on Wednesday — and for as long as it takes for the Vikings to declare a starter.

Each player will also work with the second team to add another layer to the evaluation that will be led by head coach Kevin O’Connell. “We want to be comprehensive, but at the same time I think it’s important when we feel good about a decision as a group and we’re ready to move forward to do that so we can prepare that player for the season but also give the team and our players clarity of exactly the direction we’re going,” O’Connell said. Entering his fifth season on the job with 43 wins but none in the playoffs, O’Connell will ultimately face as much scrutiny over his ability to get the best out of his quarterback as the quarterback will himself around his performance.

Murray, with seven years of experience, is the clear favorite to win the spot. O’Connell, though, has steadfastly committed to an open competition even if that has limited Murray’s repetitions with a new and complex offense. The joint practices with the Baltimore Ravens for Aug.

19-20 create a natural deadline on the schedule, but O’Connell declined to put the decision on a public timeline. “I know both guys will feel like they’ve got an opportunity to compete, and they both know — and everybody on our team knows — we’re going to do what’s best to give us a chance to be a really good football team this year,” O’Connell said. New general manager Nolan Teasley, who joined O’Connell for a pre-camp news conference at the team’s practice facility on Tuesday, will provide valuable input as well after his time in the front office with the Seattle Seahawks.

“When it’s decision-making time, ultimately you want to give your coaching staff that freedom to make the choice,” Teasley said, “but certainly I should have the ability to offer a different vantage point and we’ll discuss it actively.” Vikings keep tackle spots solidified with O’Neill extension With a four-year, …