On the undercard, Colombian Cesar Canchila outpointed Giovanni Segura to claim the WBA interim light-flyweight championship.
Re-energised, Jones knocked Griffin out in a single round to claim the WBA light-heavyweight crown.
He returned their support with a decisive 10-round TKO to retain his WBA Super Welterweight crown.
Irvine opted against leaving Deepdale for the Hawthorns, with WBA subsequently appointing Di Matteo.
The 38-year-old midfielder came on as a substitute in the 69th minute, shortly before WBA's extraordinary comeback.
The fight is for the WBA international middleweight title and takes place at New York's Madison Square Garden.
But despite the delay one of the seven-strong WBA voting panel painted a bleak picture for the Briton.
Harrison, 38, added that he is not interested in fighting WBA heavyweight champion and fellow Briton David Haye.
Hatton relinquished his WBA welterweight title on Thursday, having given up the IBF light welterweight crown in April.
"I hope the WBA will do the right thing for both Lennox and the future of boxing, " said Eliades.
This was just the first step, taking the WBA title from this giant.
There are songs in Arabic "Bukra Wba'do, " ("Tomorrow and the Day After").
Haye, 29, won the WBA belt by beating giant Russian Nikolay Valuev on points in Germany on 7 November 2009.
"Obviously we won't be fighting for the WBA ever again, " he said, when asked what action the Lewis camp would take.
Ruiz won his first heavyweight crown in 2001 when he won a unanimous decision over Evander Holyfield for the WBA title.
Haye holds the WBA version of the heavyweight crown, while the Klitschko brothers between them hold the WBC, IBF and WBO belts.
The world number one is currently 36-year-old American Nate Campbell, who recently beat Juan Diaz for the WBA, WBO and IBF titles.
The Bolton-born fighter is currently preparing for the defence of his WBA light-welterweight title against IBF champion Zab Judah on 23 July.
An impressive display could also open the door to potential unification fights with IBF champion Lucian Bute and WBA holder Mikkel Kessler.
Haye took the WBA title by outpointing Russian Nikolay Valuev on Saturday.
The recognised world titles at the weight are held by Jean Pascal (WBC), Tavoris Cloud (IBF), Gabriel Campillo (WBA) and Juergen Braehmer (WBO).
BBC: Nathan Cleverly helped to title by leaving Calzaghe gym
"I fought the best lightweight in Europe - he's not ranked number two in the world by the WBA for nothing, " he said.
The next evening in Washington, he'll defend his WBA and IBF light-welterweight world titles against Lamont Peterson in a marquee fight on HBO.
Hobson, who has signed a three-fight deal with American television network HBO, had hoped to announce an opponent for IBF and WBA title-holder Hatton last week.
For the much smaller Ruiz, 36, who had twice previously held the WBA heavyweight crown, it was the eighth defeat of his 16-year career.
The body of ex-WBA light-middleweight champion Shaun Cummins was found in 10 pieces in freezers at his home in Marriott Road, Leicester, in September.
The Helenius-Gammer fight was set to take place on the undercard of the WBA heavyweight title bout between holder Nikolay Valuev and Ruslan Chagaev.
The unbeaten Rees, 27, claimed the WBA title from France's Souleymane M'baye last July but his fight against Kotelnik is only his first defence.
Haye lost his WBA title in July to Wladimir, who also holds the WBO, IBF and IBO belts -- while Vitali is WBC champion.
The WBA light-welterweight champion's first title defence will be his first Saturday night headline show but Rees admits he is still an unknown champion.
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