Winger Blake Ferguson played the majority of the second half of the Sydney Roosters’ NRL grand-final win with a suspected broken leg.

While Cooper Cronk’s effort to play with a fractured scapula is the story of the decider, Ferguson arrived at the Roosters’ fan day on Monday morning in a moon boot and on crutches, after their 21-6 defeat of Melbourne.

“He’s broken his leg, his fibula,” Roosters coach Trent Robinson told AAP.

“It was quite sore but then after the game the longer it went the sorer it got. It went numb and that’s when they knew he broke it”

Ferguson finished the game with 161 metres as he became just the third player in NRL history to pass the 5000 mark in a season.

Bound for Parramatta next year, Ferguson was crucial all year to starting the Roosters’ sets with their powerful back three en route to his first premiership ring.

“We are going to talk about Cooper, but again it was Fergo and he didn’t care,” Robinson said.

“Obviously after the game it was such a big result for all of us, but Fergo has worked really hard for this his whole career.

“He’s had ups and downs and it was almost fitting he had something like that and pushed his way through to get the result.”

Robinson also revealed on Monday morning that forward Zane Tetevano had ruptured his bicep, which will require surgery and likely be an issue into the pre-season.