Bayern Munich head coach Vincent Kompany was taken to hospital after collapsing while watching the club’s second team practice on Friday.
The 40-year-old has contracted a virus and missed Tuesday’s press conference ahead of Arsenal’s Champions League game against Bayern Munich.
The former Manchester City and Belgium defender was then on the touchline for Wednesday’s match.
The Bundesliga club said in a statement: “Vincent Kompany had to be treated after collapsing during a training session for Bayern fans on Friday., external
“The head coach of the first team was watching the game of the second team.
“The company will undergo a thorough examination at the hospital and remain under medical care.
“For now, his coaching staff will manage training and match operations.”
Bayern’s next game is against Freiburg in the German top flight on Sunday.
“Vincent Kompany’s health is our top priority. We will do everything in our power to ensure his speedy recovery at Bayern,” said Max Eberl, Bayern’s sporting director.
“Vinnie will get all the medical care and support and all the time he needs.
“The coaching team we trust fully will take over his duties. Everyone at Bayern Munich wishes Vinny a speedy recovery.”
Aaron Danks, one of Kompany’s assistants, held a pre-match press conference for Bayern before the Arsenal game.