The Kiwi boxer has jam-packed schedule coming up with a professional bout in June before he chases a third Commonwealth Games gold.
Heavyweight Fa is one of three Kiwi boxers fighting on undercard of highly-anticipated Kambosos-Haney world title fight in Melbourne next month.
Should Motu win this weekend, it would set up the possibility for an historic IBF World Championship fight against Tauranga-born Cherneka Johnson.
Just under two weeks ago, Williams responded to the former YouTube star putting him on his boxing "hit list".
The ever-unpredictable heavyweight champion could find Anthony Joshua showdown too tempting to pass up, writes Patrick McKendry
The mood was light and so was Tyson Fury, who weighed in for his WBC heavyweight title defense against Dillian Whyte 5kgs lighter than his last fight.
David Tua sat down with Breakfast's Jenny-May Clarkson at his gym in Auckland before he heads to the US for his induction.
Build-up to Fury's world title defence against Dillian Whyte disrupted by law enforcement scrutiny on Daniel Kinehan.
The New Zealander is the world champion's contingency plan if his all-English showdown at Wembley Stadium doesn't go ahead.
Jake Paul listed off multiple superstars in the combat sports scene as potential boxing opponents in August before comically adding one last name.
Patrick McKendry argues that the former All Black Williams is too good a boxer for most retired footballers, but not good enough for genuine pros.
Barry Hall fell to the canvas twice before Williams delivered the knockout blow inside two minutes of the first round.
Andy Lee believes Sonny Bill Williams has all the makings of a champion in the ring.
The Kiwi heavyweight is training like a 'maniac' in the north of England for the fight against the former Olympian at Wembley Arena.
The heavyweight world champion said the pair bring out the best in each other at training.
Williams got some top training in with the current world champion ahead of his return to the ring next month.
Sonny Bill Williams will take on Barry Hall in March to open the "final chapter" of his sporting career.
While there was plenty to celebrate at the Olympics Kiwi sports stars gave us other reasons to wave the flag, writes Brodyn Knuckey.
Paul ended Tyron Woodley with a sixth-round KO, his fifth pro victory.
The bout was part of the Joseph Parker - Derek Chisora undercard.