Tuivasa-Sheck also had an eye on the head-to-head battle.
"Most weeks I go in with a personal challenge against the opposition and whoever's playing number one," said Tuivasa-Sheck, who racked up 265 metres in his 100th NRL match for the Warriors.
"Dufty's been on form, he's doing really well, so it was another personal challenge for me to go out there and try and beat my opposition. I think everyone across the board thinks the same way."
Tuivasa-Sheck lifts for his team
Dufty has been a standout in recent weeks but made a costly first-half error - failing to ground the ball and force a drop-out from a Nikorima kick - that led to a Warriors try and a 12-4 deficit.