Allen and McCarthy ignited Week 1 with improbable comebacks, lifting bills and Vikings as early fantasy anchors. Allen erased a 15-point fourth‑quarter hole and a 1.1% win probability, while McCarthy became the first rookie since 1985 to throw two TD passes and run for another in his debut, erasing a 10-point fourth‑quarter deficit on the road. The weekend also highlighted standout debuts from Rodgers, Jones, Geno Smith and Fields in new surroundings, plus Mahomes and Moody delivering in high‑stakes moments and a growing focus on rematches and kickers that could swing fantasy games all season.