Kinnear’s assistant, Chris Hughton, will take charge of Newcastle for the Baggies clash.
A club statement read: “On Saturday morning Joe Kinnear reported feeling unwell at the team hotel ahead of Newcastle United’s game at West Bromwich Albion
“After being examined by the club’s medical staff Joe was taken to hospital as a precautionary measure where he remains under observation.
“Joe will miss the game, with Chris Hughton taking charge of the team at The Hawthorns.”