Former IBF junior welterweight world champion Liam Paro announced his return with a dominant five-round display on home soil, dropping Jonathan Navarro before the American's corner wisely waved the white flag to surrender before the start of round six.

In his post-fight interview, the 29-year-old insisted he wants another world title and opportunity to avenge his lone defeat later down the line.

Paro, The Ring's No. 5-rated junior welterweight, sits at No. 4 with the WBO, currently held by Teofimo Lopez (22-1, 13 KOs), while reigning IBF titlist Richardson Hitchins (20-0, 8 KOs) has opened the door to a unification rematch should the Aussie reclaim gold in future.

Lopez's future at 140-pounds remains uncertain at a time where big names continue moving through the weight divisions, while Alberto Puello (24-0, 10 KOs) and Gary Antuanne Russell (18-1, 17 KOs) are new champions with tough incoming title defences.

Navarro wasn't a notable name or elite opposition but the first step on his ambitious rebuild was a welcome sight as the one-time world champion emerged assertive out of the blocks, establishing the jab and digging to the body early in a patient but purposeful gameplan as Navarro was split open on his forehand by a punch to cap a one-sided first round.

Matters only worsened for the bullish challenger as time ticked by, a left hand and more jabs downstairs scoring from the home favourite as Navarro was guilty of waiting too much and countering was his best mode of success.

Right hooks and straight shots were Paro's favoured weapon in the third, though Navarro's close-range exchanges kept him honest a round later, albeit infrequently connecting flush.

Paro mixed up his attacks to head-and-body beautifully, virtually couldn't miss with the left hand and that foreshadowed a stinging knockdown deep in round five. Navarro was floored by a curling left hand he didn't see coming and after beating the referee's count, did just enough to survive the stanza as the former champion marched forward unloading more.

Sporting a massive cut on his nose and severely fatigued after absorbing body shots aplenty, the American's corner didn't take long to realise this battle was only headed one way and called referee Chris Condon over, calling off the contest before the sixth.

In the evening's chief support at junior lightweight, one-time title challenger Liam Wilson (16-3, 8 KOs) didn't have it all his own way during a frustrating 10-round affair against Argentina's Ayrton Osmar Gonzalez, but emerged a UD10 winner (98-92, 97-93, 96-94).

The result keeps his world title aspirations alive, having claimed the vacant WBO international junior lightweight strap for a third time and retaining high standing with a sanctioning body where reigning champion Emanuel Navarrete has a Charly Suarez-shaped rematch to consider later this year after their title fight ended controversially last month.

In a battle of unbeaten light-heavyweights, Kirra Ruston (7-0, 7 KOs) emerged unscathed as he produced a second-round stoppage against Kartik Kumar. The 27-year-old, already Australian champion at 175-pounds, has raced to this record barely a year after his debut.

His former amateur foe, Callum Peters (3-0, 3 KOs), is campaigning at the weight division directly below and also pitched a finish of his own - racking up three knockdowns en route to referee Condon waving his contest against debutant Luca Lanigan off prematurely.

Welterweight: Liam Paro RTD5 (3:00) Jonathan Navarro

Junior lightweight: Liam Wilson UD10 (98-92, 97-93, 96-94) Ayrton Osmar Gonzalez

Cruiserweight: Kirra Ruston KO2 (1:41) Kartik Kumar

Light heavyweight: Callum Peters TKO1 Luca Lanigan

Featherweight: Vegas Larfield UD6 (58-55, 59-55, 58-56) Bryan Cabrillos

Welterweight: Caden Russo UD6 (59-55, 60-54, 59-55) Aaron Stahl

Heavyweight: Thomas Warria SD4 (36-40, 39-37, 40-36) Ricky Sandral

Middleweight: Quinton Smith TKO1 (2:58) Laphya Reuben