David Garrard is out, Blaine Gabbert is in, and Todd Bouman is once again off the tractor.

Jacksonville’s quarterback situation got scrambled a bit Tuesday when coach Jack Del Rio ruled Garrard out of Thursday’s exhibition opener at New England because of back pain.

Gabbert, the 10th overall pick in April’s NFL draft, will start against the Patriots. Gabbert and third-stringer Luke McCown will share snaps, but Bouman also will be available.

The Jaguars signed Bouman, 39, a former Viking, making this his seventh stint with the Jaguars in the past five years. In 2010, Bouman was literally sitting on a tractor helping his father harvest corn in Minnesota when the Jaguars called.

“We actually made a call to the tractor again, and Todd will be joining us this evening,” Del Rio said. “Pulled him off the tractor once again. He’s a great guy, and we think he’s a good veteran player. He’ll be able to come in and pick up and help us perform throughout the preseason, and we’ll see from there.”

Briefly: Los Angeles’ city council approved a framework deal that would grant a private developer access to tax-free financing to help it build a 72,000-seat NFL stadium on the city’s convention center campus.

The council’s 12-0 vote set the stage for city leaders to later consider binding agreements with developer Anschutz Entertainment Group on the project’s financing, leasing arrangements and other details.

- Linebacker Channing Crowder said he is

retiring, less than two weeks after he was cut by Miami.

Crowder, 27, said he tried out with New England but decided it was time to retire after six NFL seasons. He made the announcement Tuesday on WQAM radio in Miami.

- The NFL is adding game-day testing for performance-enhancing substances – but not recreational drugs – this season under the new collective bargaining agreement.

The league’s senior VP of law and labor policy, Adolpho Birch, said tests weren’t conducted in the past on days there were games “because of logistical issues involved, much more so than any philosophical issues.”

- Detroit signed running backs Mike Bell and Jerome Harrison to help stabilize the position after losing rookie Mikel Leshoure for the season because of a torn left Achilles’ tendon.

- Tennessee agreed to terms with safety Anthony Smith, who has played in 63 games with Pittsburgh, St. Louis, Jacksonville and Green Bay.

- After agreeing a two-year deal with Baltimore on Monday, running back Ricky Williams passed his physical and practiced with his new teammates.