"I really want bigger fights after this one. A win puts me in the Top 10 of all the sanctioning bodies, which basically opens up bigger fights with Derek Chisora, and possible world title contention.
Watch live 11am - Parker v Fa press conference
"There are a lot of great fights to be made if I come through this as the winner. One hundred per cent, this can be life-changing."
The undefeated Fa last fought in November 2019, a 10-rounder against American Devin Vargas in Utah.
Fa had mystery surgery late last year and said he was "one hundred per cent better - it sets up the rest of my career and means I won't need to step back or take another surgery".
Fa and Parker had four fights as amateurs, the results being shared. Fa said Saturday night's fight would be even sweeter, because it offered the chance of a tiebreaker.
He's been training to the sounds of Bill Withers' 'Lovely Day'.
"It makes me happy, and a happy fighter is a dangerous fighter," he said.
"I haven't been this excited for a long time. It's been a while since I've been in the ring and I'm good to go."