Kell Brook and Amir Khan engaged in war of words on Twitter after talks over potential superfight break down

Amir Khan and Kell Brook have been involved in a war of words on Twitter after talks over a potential superfight in the summer broke down.

The British duo had been expected to settle their differences in the ring later this year, but the fight is now off the table for the time being after their respective camps failed to strike a deal.

Khan seemingly offered Brook just 30 per cent of the purse for the bout, with the Yorkshireman and promoter Eddie Hearn holding out for 50/50.

Bolton fighter Khan tweeted Hearn to say he was the 'A' side in the fight, and that even with 30 per cent of the purse, Brook would earn more than he did against Gennady Golovkin.

Khan then tweeted a picture showing his net worth of $30million, compared to Brook's $9.4million, saying: "I'm this guy below! Now get the f*** in the queue. Fight your mandatory for $1million.

"My offer's too good. Take it or leave it!"