The American completed the set at lightweight, beating George Kambosos Jr twice in Australia to become the undisputed 135lbs champion, and he defended that crown with a somewhat fortunate points victory over Vasiliy Lomachenko in May.
Haney last week declared that he will be vacating his lightweight belts, turning his full focus to the 140lbs super-lightweight division and suggesting he could even move up further in the future in his bid to become a three-weight world champion.
The 25-year-old, 30-0 as a professional, faces a major test in his first fight at super-lightweight though, as he bids to take Prograis' WBC belt. Josh Taylor is the only man to have beaten Prograis, who became world champion for a second time when he stopped Jose Zepeda last year.
Prograis was though far from convincing when beating Danielito Zorrilla on points in his homecoming bout in New Orleans six months ago, and now it is Haney who has home advantage in San Francisco on Saturday night.
Haney vs Prograis date, start time, venue and ring walks
Haney vs Prograis will take place on Saturday, December 9, 2023 at the Chase Center in San Francisco, California.
The main event ring walks are expected at around 3:30am GMT early on Sunday morning, although that is subject to change depending on the length of the bouts earlier on the card. The undercard should start at around 1am.
Haney vs Prograis fight card/undercard in full
Ebanie Bridges makes the second defence of her bantamweight world title as she fights in the USA for the first time, taking on Miyo Yoshida, while Montana Love fights the unbeaten Liam Paro.
Andy Cruz, who won gold at the 2020 Olympics and was regarded as one of the great amateur fighters, continues his professional career, fighting for the second time after making a successful debut in July.
Regis Prograis vs Devin Haney
Liam Paro vs Montana Love
Andy Cruz vs Jovanni Straffon
Ebanie Bridges vs Miyo Yoshida
Amari Jones vs Quilisto Madera
Beatriz Ferreira vs Destiny Jones
Shamar Canal vs Jose Antonio Mez
How to watch Haney vs Prograis
TV channel: In the UK, Cameron vs Taylor is being shown live via sport streaming service DAZN as part of their normal subscription package, rather than pay-per-view.
A subscription to DAZN in the UK starts at £9.99 per month, and can also be watched on TV via channel 429 on Sky.
Live stream: DAZN subscribers can also catch the action as it unfolds live online via their website or app.
Haney vs Prograis prediction
Haney is the firm favourite, despite the step up to 140lbs for the first time, and it is difficult to argue with that.
He may not be the most thrilling fighter to watch but Haney is clinically effective and, while fans are desperate to see bouts against Shakur Stevenson and Gervonta Davis, the 25-year-old has showed no fear in taking on Lomachenko and Kambosos Jr, who he travelled to Australia to beat twice.
Should it be another successful night for Haney, the formula will surely be a familiar one. His last seven wins have come on points and the American can be expected to try and keep himself out of trouble throughout, controlling the distance and picking off rounds with his jab.
Prograis has the power to trouble Haney, with 24 of his 29 professional wins coming by stoppage, and he will have to force the issue and be the aggressor on Saturday night. His performance last time out against Zorrilla will have done nothing to worry Haney - a major step-up is required from the champion.
Haney has a seemingly unshakeable confidence, is almost ten years younger than Prograis, and can be expected to look even stronger in the ring now he is not having to make 135lbs. In a clash of styles, the control of Haney is likely to come out on top.
Haney to win by unanimous decision.
Haney vs Prograis weigh-in results
The fighters took to the scales on Friday, with both making weight.
Haney came in bang on the 140lbs limit, with Prograis tipping the scales at 139lbs.
Haney vs Prograis betting odds
Haney to win: 1/4
Prograis to win: 3/1
Haney to win on points or by decision: 4/11
Haney to win via knockout or TKO: 8/1
Prograis to win on points or by decision: 13/2
Prograis to win via knockout or TKO: 11/2
Odds via Betfair (subject to change).