San Francisco 49ers linebacker Fred Warner starred in a scary moment during the first quarter of Sunday's duel against the Tampa Bay Buccaneers. At 7:48, when the Bucs ran the ball and Warner chased Rachaad White, safety Ji'Ayir Brown rolled up on Warner's knee.It was a fast play that looked normal until Warner stayed on the ground and couldn't move his right leg. Doctors entered the field and started checking him before Warner was carted off. Shortly after the play, the video went viral on social media.The Buccaneers ended up punting the ball after Baker Mayfield was sacked for an 8-yard loss. Mayfield was seen praying after Fred Warner went down with this injury, while other 49ers players were on their knees around the field.In 5 games, Warner recorded 50 tackles, two forced fumbles and one fumble recovery. He has spent his entire eight-year career with San Francisco, becoming a key player for the franchise.NFL insider Diana Russini reported that Warner suffered a dislocated right ankle during that play with Brown. This adds to the number of injuries the team has dealt with this season. They entered this game missing big names such as Brock Purdy, Brandon Aiyuk, Nick Bosa and George Kittle, among others.Deebo Samuel reacts to Fred Warner's gruesome injury against Buccaneers Besides the reactions on the field, such as Baker Mayfield praying for Fred Warner and Buccaneers' wide receiver Trez Johnson agitatedly calling for the trainer to get on the field, others reacted on social media.Former 49ers star Deebo Samuel, who is not playing with the Washington Commanders this week, sent a short but powerful message on social media."Cmon 54," Samuel wrote on X. "God gotcha twin."Samuel was selected by the 49ers in the second round of the 2019 NFL Draft, spending the first six seasons of his career with the team.Despite a rocky divorce with the team, the veteran wide receiver still has love for his former teammate. Warner is one of the best players in his position and someone who has earned a lot of respect from his peers over the years. He has been named to the Pro Bowl four times and has received First-team All-Pro honors four times as well, including the past three campaigns. The 49ers were dealt a bad hand before this game, and the afternoon only became worse after Warner went down.