Audio By Carbonatix
Scotland midfielder Scott McTominay was not on the team bus as it arrived at their hotel in Boston after missing Thursday's training session because of an upset stomach.
The Napoli player, who has been the Scots' leading man in recent campaigns, was part of the group as they travelled from their base camp in Charlotte.
However, the 29-year-old made his own onward journey with a doctor in what is believed to be a precautionary measure.
Steve Clarke's side get their first World Cup in 28 years underway when they face Haiti on Saturday evening (Sunday 02:00 BST) at Boston Stadium in Foxborough.
They will also face Morocco and Brazil in the group stage.
McTominay, who has scored 15 goals across 70 caps, found the net in Scotland's convincing 4-0 win over Bolivia on Saturday.
Scotland fans, who have been flooding to Boston in huge numbers, will be anxious for an update from Clarke, who is due to address the media on Friday.
Speaking at Thursday's media conference, fellow midfielder Kenny McLean said of the situation: "Hopefully that doesn't spread. Fingers crossed Scott will be fine. I'm sure he will be.
"I don't need to speak too much about him; everyone knows how big he is.
"It's a team effort and always will be, but when you have special, special players like that, you want them to be available. I'm sure he will be."
Latest Stories
-
Public trust crisis around Special Prosecutor is fueling attacks on OSP – Kpebu
8 minutes -
South African airline defends low-altitude aerial stunt over packed stadium
27 minutes -
Special Prosecutor needs adult supervision – Martin Kpebu
36 minutes -
Africa’s food systems must be judged by what farmers earn – AGRA
57 minutes -
Raphinha & Lamine Yamal score twice as Barcelona beat Rayo Vallecano
2 hours -
Everton agree £40m fee for Monaco striker Balogun
2 hours -
Mudryk to Spurs as Chelsea’s Sanchez heads to Como
2 hours -
Saka scores agaian as Arsenal beat Aston Villa
3 hours -
Man City open talks with Chelsea over Enzo Fernandez move
3 hours -
Man City agree £65m deal for Everton’s Ndiaye
3 hours -
Kushner states regret over World Cup sell-off plan
3 hours -
50,000-litre LPG tanker fire contained on Tema Motorway as Fire Service averts disaster
3 hours -
Supreme Court clears way for Trump to keep building White House ballroom
3 hours -
Amazon rigged billions in ad pricing, lawsuit from states and US watchdog alleges
4 hours -
US singer D4vd’s celebrity lawyers withdraw from murder case
4 hours