Leeds United chief executive Angus Kinnear confirmed that the club's teenage winger Jack Clarke is heading home from hospital to rest after suffering an illness during Saturday's 1-1 draw with Middlesbrough.
But Clarke required emergency assistance towards the end of the game and received oxygen before being taken away on a stretcher.
The enduring worry about his condition ensured that Marcelo Bielsa's post-match media duties were unusually succinct, with the Leeds manager anxious to get to his player's side.
"The player is responsive and attending hospital with the club's head of medicine and performance".
'What we know is that he didn't feel well, ' Bielsa said after the game. "We don't know the reasons yet", he said.
Clarke, who had been substituted at half-time, was released from hospital on Teesside on Saturday evening, and will miss training this week in order to convalesce from a complaint as yet unspecified by the Championship club.
The 18-year-old is a product of the Leeds' academy and has been making the right waves in the English second division, in what is his debut campaign.
In 16 league appearances Clarke has scored two goals and has two assists, but has clearly done enough in that time to appear on Liverpool's transfer radar.
Boro had opened the scoring in the 47th minute, but Leeds' Kalvin Phillips rose to the occasion, scoring a late, late equaliser deep into added time to secure a point for the visitors.
In a season filled with dramatic comebacks, the 1-1 draw kept Leeds within two points of league leaders Norwich City, and they will attempt to regain top spot during midweek.