Mitch Trubisky came on for an injured Kenny Pickett to throw a 6-yard touchdown pass in the fourth quarter and the Pittsburgh Steelers' maligned defence made it stand up in a stunning 20-18 win over Tom Brady and the Tampa Bay Buccaneers on Sunday.
The Steelers (2-4) snapped a four-game losing streak by relying on a largely anonymous defence missing almost its entire starting secondary.
Steelers linebacker Devin Bush broke up the two-point conversion attempt and Pittsburgh ran out the clock behind Trubisky to avoid its first 1-5 start since 1988.
Trubisky, benched in favour of Pickett at halftime of an Oct. 2 loss to the New York Jets, passed for 144 yards and the touchdown to Chase Claypool, the first scoring grab by a Pittsburgh wide receiver this season.