San Francisco 49ers Al-Shaair was signed by the
San Francisco 49ers as an
undrafted free agent on April 27, 2019. Al-Shaair made his NFL debut in the season-opener against the
Tampa Bay Buccaneers, playing exclusively on special teams and making two tackles in the 31-17 road victory. The 49ers reached
Super Bowl LIV, but lost to the
Kansas City Chiefs by a score of 31–20. He did not appear in any postseason games. Al-Shaair played in 15 games with four starts as a rookie, making 18 tackles. In Week 4 against the
Philadelphia Eagles on
Sunday Night Football in 2020, Al-Shaair recorded his first career interception off a pass thrown by
Carson Wentz during the 25–20 loss. Al-Shaair entered the 2021 season as a starting linebacker for the 49ers. He started 13 games, finishing second on the team with 102 tackles, along with two sacks, five passes defensed, an interception, a forced fumble and two fumble recoveries. On March 15, 2022, the 49ers placed a second-round restricted free agent tender on Al-Shaair. He was placed on injured reserve with an
MCL sprain on October 3, 2022. He was activated on November 12.
Tennessee Titans On March 20, 2023, Al-Shaair signed a one-year contract with the
Tennessee Titans. He started all 17 games and finished fifth in the league with 163 tackles.
Houston Texans On March 15, 2024, Al-Shaair signed a three-year, $34 million contract with the
Houston Texans. Following Week 3, he was fined $11,000 for punching
Chicago Bears running back,
Roschon Johnson, despite Al-Shaair not being ejected from the game. He was issued a second fine for $11,255 after a late hit out of bounds on
Tennessee Titans running back,
Tony Pollard. On December 1, 2024, Al-Shaair delivered an illegal hit to
Jacksonville Jaguars quarterback,
Trevor Lawrence, after the latter had slid. Lawrence was ruled out for the rest of the game with a concussion and Al-Shaair was ejected. A fight erupted between Al-Shaair and several Jaguar players, with Jacksonville cornerback,
Jarrian Jones, also getting ejected. Al-Shaair publicly apologized via social media for the hit the next day. In 2025, Al-Shaair led the Texans in tackles while anchoring one of the NFL’s top ranked defense, a performance that culminated in his first career selection to the Pro Bowl squad. On April 29, 2026, the Texans signed Al-Shaair to a three-year, $54 million contract extension through the 2029 season. ==NFL career statistics==