Knights legend Andrew Johns has doubled down on comments made after his first premiership victory back in 1997.

At the time, Johns said that winning an NRL title was "better than sex" and when asked by Nine's Danika Mason this week if he still felt that way, the eighth Immortal explained why.

"Yeah it is," he said on Nine's Freddy and The Eighth.

"It's like your whole lifetime, you dream of something like that and then it happens to you. On top of that, you do it with players who you spend a quarter of your life with.

"It's just so incredible."

Andrew Johns says Reece Walsh's error rate might be the defining factor in Sunday's grand final, saying the Broncos fullback can win big games but "he can lose you some."

Walsh is reportedly in line to be in the No.1 jersey for the Kangaroo

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