Leeds Rhinos boss Gary Hetherington blasted 6 of his rival Super League chiefs after they thwarted a move to heal the rift in the game.
The Rugby Football League has confirmed the schedule for the first week of the Super League play-offs.
Huddersfield captain Danny Brough slammed the door shut on England and will revert to representing Scotland in the World Cup.
Hull FC forward Dean Hadley has signed a new contract that will keep him at the KC Stadium until the end of 2016.
The 22-year-old Hull-born back rower, who made his debut against Catalan Dragons last season, has established himself in Lee Radford's side this year, appearing in 13 of their last 19 matches.
"What Dean brings to training and what he has brought this year on the field has been immense," Radford said.
"And he has taken huge strides in his development, which is why we were keen to offer him this extension."
Bradford Bulls' caretaker coach Matt Diskin has promised his side will be "fired up" for tonight's clash with Hull KR.
Diskin has been left to pick up the pieces following the Bulls' crushing 46-18 defeat at Salford last Sunday and the subsequent sacking of head coach Francis Cummins and his long-serving assistant Lee St Hilaire.
Victory against the Robins is a must if Bradford are to keep alive their slender hopes of avoiding relegation from the First Utility Super League and Diskin believes the players are ready for the fight.
"We are smarting as a group and are desperate to respond," the former Leeds hooker said.
"With that in mind, I believe our supporters can expect to witness a fired-up Bulls team tonight. I think it goes without saying that we have only one aim."
Not surprisingly, Diskin has selected himself and, after expressing his dismay at the latest turn of events and agreeing reluctantly to step into the breach, he has thrown himself wholeheartedly into his first coaching experience.
Leeds full-back Zak Hardaker is to be investigated over allegations that he made homophobic comments during the Rhinos' 24-6 Super League defeat at Warrington last Friday.
Hardaker, who was a member of England's 2013 World Cup squad, is alleged to have mouthed a homophobic reference towards referee James Child and the incident has been referred to the Rugby Football League's compliance department, which has begun an investigation.
Leeds Rhinos forward Carl Ablett will lose his ever-present record this season after being handed a two-match ban.
The second rower admitted kicking Warrington centre Joel Monaghan in the act of scoring during the Rhinos' 24-6 defeat at the Halliwell Jones Stadium last Friday.
Ablett, who has not missed a game since last June, will sit out Leeds' Tetley's Challenge Cup quarter-final against Leigh on Friday as well as the league game against Huddersfield on Thursday week.
Wakefield prop Richard Moore will miss his club's home game against London Broncos on Friday week after admitting a Grade B striking offence during his side's 20-12 defeat at Bradford last Sunday. He was given a one-match ban.
Wakefield Wildcats forward Chris Annakin has been served with a five-match ban by the Rugby Football League.
Annakin was charged with a dangerous throw in his side's loss to Warrington on Sunday and was given his punishment on Tuesday night.
His ban means coach Richard Agar will not be able to call on him for the crucial relegation scrap with Bradford on Sunday. He will also sit out meetings with London, Wigan, Hull and Leeds.
Hull FC take on local rivals Hull KR today in the Magic Weekend fixture at Manchester's Etihad Stadium.
Hull coach Lee Radford makes two changes to the team that lost to Wigan, with centre Ben Crooks dropping out with a pelvic injury and forward Josh Bowden making way for the return of Dean Hadley. There is also a recall for Jordan Rankin, who is expected to win back his half-back spot.
Rovers coach Craig Sandercock has largely kept faith with his side, recalling prop Jonny Walker from suspension in the only change to the line-up that drew at Salford.
In the draw for the fifth round, Hunslet travel to Wigan, Featherstone are at Leigh, the big one sees Leeds at home to St Helens, Doncaster go to Warrington, Bradford entertain Catalans, Keighley travel to Swinton, and Castleford are at home to Sheffield Eagles.
Leeds Rhinos have re-named Friday 11th April JP Day in honour of legendary former England skipper Jamie Peacock who will play his 500th career game next Friday 15 years to the day since his first ever Super League appearance.
Peacock made his debut for Bradford Bulls on 11th April 1999 against Wakefield, having previously played four games on loan at Featherstone Rovers, and now 15 years on he will play his 500th career game against the same opponent but with Leeds Rhinos.
To mark the occasion, thousands of Peacock masks will be distributed at the game for supporters to wear. Plus the club will be using a special hashtag #JP500 for fans to pay tribute to the legendary forward on social media that will be shown on the big screen and scoreboard on the night.
The long-running saga over the battle to secure control of Bradford Bulls is close to reaching a resolution.
Administrators are thought to have secured agreement with one of the five groups seeking to buy the embattled Super League club, with an announcement expected tomorrow (Wednesday).
Bradford businessman Marc Green has emerged as frontrunner after Richard Lamb's London-based consortium failed to provide proof of funds in time.
Green's company, Safeguard Security Group Ltd, is thought to be the Bulls' biggest creditor following a loan it made to the club last September.
An offer from Mandy Koukash, wife of Salford chairman Marwan Koukash, was rejected by the administrators a week ago, while other bids from the two local football clubs, Bradford City and Bradford Park Avenue, are also thought to have bitten the dust.
Hull KR have moved to ease their injury crisis by signing St Helens winger Ade Gardner on loan.
The Robins have lost David Hodgson, Omari Caro, Sean Gleeson and Craig Hall already this season, leading coach Craig Sandercock to sign Gardner for a month.
The 30-year-old has scored 173 tries in 286 appearances for Saints - although first-team opportunities have been harder to come by over recent years.
"With David, Omari, Sean and Craig all missing at the moment, we are very thin in the outside backs. That being the case, we've had no real option but to go into the loan market and Ade Gardner fits the bill perfectly for us," Sandercock said.