National Football League roundup

Donald has not received a new contract, although the sides are working to "reach a solution" on an extension, the Rams said.

The 26-year-old is not expected to play in Sunday's season-opening game against the Indianapolis Colts. Rookie Tanzel Smart will take Donald's spot in the starting lineup.

Donald has been absent throughout training camp and the preseason. Had he failed to report before Sunday's game, Donald would have been in line to lose one game check from a contract that pays him a base salary of $1.8 million.

He has been a Pro Bowl selection in each of his three NFL seasons, playing all 48 games.

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Oakland Raiders kicker Sebastian Janikowski was placed on injured reserve with a herniated disk in his back.

Janikowski, 39, reworked his contract last week to remain with the Raiders and the back injury is not new to team management. He missed the final two preseason games with back soreness.

Janikowski has played 268 games with Oakland -- the most in franchise history.

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The Pittsburgh Steelers signed defensive end Stephon Tuitt to an extension through the 2022 season, the team announced.

The new six-year deal is worth $61 million, sources told ESPN's Adam Schefter.

Tuitt, 24, was set to make just over $1 million in base salary in 2017, the final year of his rookie contract. He would have been a free agent in 2018.

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Chicago Bears defensive end Akiem Hicks signed a four-year, $48 million contract extension with $30 million guaranteed, multiple outlets reported.

Hicks, who is now under contract with the Bears through the 2021 season, signed a two-year, $10 million deal in 2016. The 27-year-old recorded a career-high seven sacks to go along with 54 tackles while starting all 16 games last season.

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The New Orleans Saints moved quickly to find a replacement for long snapper Jon Dorenbos, who will require open heart surgery to repair an aortic aneurysm.

The Saints signed defensive lineman/long snapper Zach Wood to a contract after the team placed Dorenbos on the non-football illness list Friday.

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The Indianapolis Colts waived running back Matt Jones after one week and elevated guard Adam Redmond to the 53-man roster from the practice squad.

The Colts are set at running back with Frank Gore, Robert Turbin and rookie Marlon Mack heading into Sunday's season opener against the Los Angeles Rams. (Editing by Gene Cherry)