Hull have released Stuart Reardon after he failed a medical less than a fortnight after signing him from Warrington.
He was released by the Wolves earlier this month and was soon snapped up by Hull, despite a well publicised court case.
But now his stay at the KC Stadium has been cut short after failing a thorough medical.
Chief Executive James Rule said: “We obviously feel sorry for Stuart. However, we cannot retain a player after he has failed our rigorous medical examination.
“We wish Stuart well in his future career.”