Week 4 delivered a wave of big swings for fantasy managers. Jaguars coach Liam Coen won the week, riding a 26-21 win and a return to AFC South contention as Brock Purdy stumbled with three turnovers. Lamar Jackson left with a hamstring scare, while Mike Tomlin’s Steelers pressed their case in Ireland with a stifling defensive effort. Michael Penix Jr. quieted critics with a clean, productive day featuring Bijan Robinson and Falcons receivers as Atlanta clicked on all cylinders.

Jaxson Dart’s Giants debut provided a spark behind the ground game and battled through a key injury to Malik Nabers, while the Browns and Titans offered stark questions about their offenses. Vic Fangio’s defense preserved Philadelphia’s perfect start, and Bryce Young’s Panthers continued to prop up possession time without explosive passing. Week 4 underscored the season’s volatility and the constant need to adapt lineups on the fly.