Wigan chairman Dave Whelan says he may sue West Ham and the Premier League after the saga of the Hammers' signing of Javier Mascherano and Carlos Tevez.
Whelan is furious that West Ham were only fined £5.5m
West Ham were fined £5.5m but not deducted points after being accused of acting improperly over the transfers.
"This is a very serious offence West Ham committed," said Whelan. "They broke the law, told blatant lies and should have got a 10-point penalty.
"If we can sue West Ham or the Premier League, I am sure that will happen."
Whelan says three Premiership clubs are receiving legal advice as they figure out whether they have a case.
"You have owners involved as well as chairmen," added Whelan.
"You have the likes of Middlesbrough, the likes of Fulham where the owners, like myself, stay in the background.
"They have come forward big-style to say 'we're not happy with this'."
The Premier League is in a bit of turmoil because everyone knows this is not right
Wigan chairman Dave Whelan
With two games left in the season, Wigan are one place above West Ham and the drop zone, separated only by goal difference.
Whelan believes his club and the others fighting for their lives at the bottom of the Premiership have been treated badly by West Ham's punishment.
He added: "Justice would be West Ham being one of the two clubs that still has to go down, but justice has so far not been served in this case.
"If there was any action taken by the bottom six clubs that are in danger of going down, I'd be a big supporter of that action.
"I think the bottom six will stick together and take action together whichever two clubs go down, if West Ham aren't one of them.
"If any action is taken I think it'll be in the next 14 days and I'll support any action that the clubs want to take.
"The chairmen and chief executives have all spoken and two, maybe three clubs are in the process of taking legal advice, Wigan being one of them.
"Would we sue the league? We don't know whether we could. Would we sue West Ham? Again, we need to find out whether we can."
Whelan also says the Premier League needs to undergo a radical overhaul to stop this from happening again.
"The Premier League is in a bit of turmoil because the officials and the clubs all know what happened was not right," said Whelan.
"I have no anger with West Ham or their supporters. They are a great club and get very well supported.
"But the Premier League have handled this in a very poor manner and I think it should have been passed on to the Football Association for them to sort it out."
Meanwhile, Whelan has also insisted that manager Paul Jewell's job is safe, even if Wigan are relegated from the Premiership.
He told BBC Five Live Sport: "If we go down from the Premier League, if we go down from the Championship, I would still want Paul Jewell to manage Wigan Athletic.
"I would not say that unless I meant it. He is the best manager I have worked with. He is probably one of the top six managers in England."