Jimmy Greaves' illness is not coronavirus related, his family have confirmed.
Tottenham announced their record scorer had been hospitalised on Tuesday and was undergoing treatment.
His family have since told Mirror Sport that Greaves spent a 'comfortable' night in hospital and is awaiting further tests.
Greaves, 80, is the greatest goal scorer in English football history and helped the Three Lions to World Cup glory in 1966.
He was a Sunday People columnist up until suffering a stroke in 2015 which left him wheelchair-bound.
Greaves spoke with his wife, Irene, on the telephone this morning because he isn’t permitted any visitors.
And he and his family hope to have a clearer picture of the issue later today once tests have been carried out. Greaves has not suffered another strike.
In a statement late on Tuesday evening, Tottenham said: "We can confirm that our record goalscorer Jimmy Greaves is currently being treated in hospital.
"We are in touch with his family and will provide further updates in due course.
"Everybody at the club sends their best wishes to Jimmy and his family."
Free-scoring Greaves came through the ranks at Chelsea, netting 132 goals in 169 matches before joining Italian giants AC Milan.
The striker returned to England when joining Spurs for £99,999 in December 1961 and scored a record-breaking 266 goals in 379 competitive appearances for the north London club.
Greaves won two FA Cups and the Cup Winners' Cup at White Hart Lane, before joining West Ham as the late, great Martin Peters moved the other way.
He scored 44 goals in 57 appearances for England, with an injury in the final group game of the 1966 World Cup allowing Sir Geoff Hurst the chance to come into the side.
Greaves now struggles with his speech but can still sign his famous autograph.
One of the nurses who regularly visits his Essex home raised concerns that his health wasn’t as normal yesterday and he was taken to hospital for monitoring and tests.
