England footballer, who is now manager for the Ipswich Town Under-23 team, was taken to hospital earlier this week for tests.
The 42-year-old was diagnosed with primary sclerosing cholangitis - a rare disease that attacks the bile ducts Read more Ofcom 'concerned' over recurring Gogglebox and GBBO complaint Kieron had to leave the latest series of Channel 4 show Celebrity SAS: Who Dares Wins in September after he suffered a cracked rib and punctured his lung.
Dyer said: "Unfortunately, I was diagnosed with a condition of the liver a couple of years ago, that would lead to me one day needing a transplant. "Over the next week, test results will confirm when I need to go through this procedure.
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