“Kevin is grateful to the medical team for their intervention and ongoing care.
“During this difficult time, the family are requesting privacy, and will be making no further comment.”
Newcastle put a message out to “King Kev” on social media, saying, “We’re with you every step of the way. Hoping for a full and speedy recovery”.
Speaking before the Magpies played Leeds United on Wednesday, Newcastle manager Eddie Howe told Sky Sports: “Really sad news. Kevin is an absolute icon of this football club, not just as a player but as a manager. An inspirational figure.
“I’ve been lucky enough to meet him a few times. He’s been so kind and generous with his time and his words for me. We wish him well, the whole city is behind him and with him every step of the way.”
Howe added post-match: “We want to produce a similar team [to Keegan’s Newcastle]. We want everyone to be desperate to come and watch the team and stick with the team right until the end because you never know what’s around the corner.
“You never know how a game can end. With Kevin’s team, that was certainly the case.
“We want that to be the same with us and we want supporters to love the team in the same way.”
Liverpool said “the thoughts and support of everyone” at the club were with Keegan.
“All of us at LFC and official former players association Forever Reds send our best wishes to Kevin, his family and friends,” added the Anfield side.
“Sending our strength and love to Kevin and his family at this time,” said Manchester City.
The Football Association, Premier League and a host of other clubs also sent Keegan messages of support.
