Manchester United midfielder Shinji Kagawa was treated for breathing problems after his side's midweek clash on Everton, according to The Sun.
The 24-year-old Japanese playmaker played 58 minutes of Manchester United's shock defeat to Everton on Wednesday night before being replaced by Nani.
Manchester United boss David Moyes appeared to take Kagawa off for tactical reasons, however it has now been revealed that the former Dortmund star was suffering from breathing problems.
Neighbours of the Manchester United star - who lives in Alderley Edge, Cheshire - reportedly called 999 because they were worried about the Japan ace.
An ambulance spokesman said: “We arrived at the scene within seven minutes to treat a person for breathing difficulties.”
And a Manchester United source added: “He had a bit of a turn but he’s OK now.”
It is not yet known if Kagawa will feature in Manchester United's home fixture against Newcastle United on Saturday, however the midfielder's availability should become clear when Moyes addresses the press this afternoon.
Kagawa, who moved to Old Trafford for an initial fee of £12million, has featured in 11 of Manchester United's opening 21 matches.