Leeds United are considering a compensation claim for lost transfer add-ons following the latest settlement of the Carlos Tevez dispute.

West Ham and Sheffield United reached an out-of-court settlement over the Argentinian's ineligibility during the 2006-07 season, in which the Yorkshire club were relegated. Their demotion deprived Leeds of extra payments from the transfers of Rob Hulse, Matthew Kilgallon and Ian Bennett to Bramall Lane.

The Leeds chairman Ken Bates told the club website they were seeking legal advice. "We are currently taking advice on it and won't be commenting further at this time," he said.

Sheffield United successfully argued that Tevez was ineligible to play for West Ham United and that his goals helped keep West Ham in the Premier League at their expense. An independent hearing ruled in favour of their compensation claim and the clubs reached an agreement earlier this week thought to be around £20m. Bates' comments suggest, however, that the issue could drag on.

"We sold a number of players to Sheffield United with contingencies," Bates said. "When they got relegated on the last day of the season we missed out on a substantial sum. That's what we lost and if they are being compensated for their loss we believe we should be compensated for our loss.

"There are other clubs in the same boat who have similar claims. Ours is the biggest claim and it would be nice to collect that and strengthen our squad."

The former Blades manager Neil Warnock also said on Tuesday that he was considering legal action against West Ham while members of his team also intend to pursue a compensation claim.

West Ham, meanwhile, criticised Lord Griffiths' ruling for encouraging "a potentially endless legal chain of claims and counter-claims, which can only be damaging to English football".

A statement on their website added: "As a club we will strongly resist any attempts to prolong this matter through the courts both to protect our interests and those of the wider game."