Real Madrid striker Kylian Mbappe left the hospital after he had missed the first match at the newly expanded club World Cup after having suffered from gastroenteritis.
Mbappe, 26, was a surprising omission of the first starting line-up, called by the new manager Xabi Alonso against Saudi Pro League side Al-Hilal on Wednesday.
The Frenchman was very missed by his teammates when they pulled 1-1 after Federico Valverde missed a golden opportunity to win the meeting in stop time when his penalty was saved.
After the match, Madrid published a statement on Thursday in which they clarified why Mbappe was absent.
The club said he had been taken to the hospital on the day of their match against Al-Hilal to undergo tests, and added that he returned to the team's camp.
On Friday, Real also confirmed that Mbappe was in the team hotel and did aerobic work when he recovered from illness.
Then it was asked to give an update on the health of Mbappe on Tuesday, Alonso said: 'Kylian felt a little better in the morning, but not good enough because it is too hot.
“We are going to wait for him until the last moment, we will decide tomorrow.”
After the draw against Al-Hilal, the Spaniard added: 'I don't know if Mbappe will be back for the next game.
“We'll see. He didn't do well in the past two days. He is sick. '
Instead of Mbappe, Alonso chose to start the 21-year-old striker Gonzalo Garcia who scored 25 goals last season in 36 games for Real Madrid Castilla.
He noted the opener against Al-Hilal on Wednesday before former Wolves midfielder Ruben Neves made sure that the loot was shared.
Real Madrid is the next in action on Sunday, while they are confronted with the Mexican side Pachuca in North Carolina, before their last group phase against Red Bull Salzburg in Philadelphia next Thursday.