A thrilling weekend of football was highlighted by a “Sunday Night Football” matchup between the struggling San Francisco 49ers and the Buffalo Bills at the snow-covered Highmark Stadium. After battling Achilles tendinitis for much of the season, running back Christian McCaffrey made his season debut for the 49ers on November 10 against the Tampa Bay Buccaneers. However, in his fourth game back, McCaffrey suffered another leg injury that forced him to exit the game. Early in the second quarter, with just under four minutes remaining, McCaffrey took a pitch and gained a few yards before collapsing to the ground without any defenders nearby. A slow-motion video of the incident showed his left leg awkwardly buckle before he fell to the turf. NFL fans expressed deep concern for Christian McCaffrey after he suffered an injury, especially considering he had already missed the 49ers’ first eight games earlier in the season. Many took to social media to share their worries.