Hull City have confirmed defender Angus MacDonald has been diagnosed with bowel cancer.
MacDonald, 26, joined the club in January 2018 following an impressive spell with Barnsley, where he was club captain.
The defender made three appearances for Hull last season, his last coming in the Carabao Cup defeat to Derby in August.
MacDonald was diagnosed with a blood clot in his calf in September, which initially forced him out for nine months.
He stated his intention to return to action in an interview with Football League World last month, describing his layoff as the 'toughest year' of his life.
A club statement read: "Hull are sad to announce that Angus MacDonald has been diagnosed with early stages of bowel cancer.
"Angus has shown great strength of character in the way he has reacted to this news.
"The whole Tigers family join together in showing Angus continued love and will support him in his recovery. His physical and mental wellbeing are our number one priority at this moment in time.
"The club kindly requests that supporters and the media respect the privacy of Angus and his family at this time. Please also note that any further updates on his progress will be provided by the club."
The defender has also enjoyed spells with Salisbury and Torquay.
Hull have had a disappointing start to the season, winning just one of their first six matches.
They managed a draw with Millwall last time out but their only win of the season came in their first home match, against Reading on August 10.
