Declan Rice is in a race to be fit for England's World Cup quarter-final against Norway on Saturday.
Rice hasn't been training due to a sickness bug, with Thursday the second successive day where he's been absent.
What happened?
Marc Guehi will be assessed on Friday after picking up a minor hamstring injury in their victory over Mexico in the round of 16.
Why it matters for Declan Rice
England have taken steps to ensure the bug does not reach the rest of the group, and Thomas Tuchel will be desperate to have a fully fit defence given the presence of Erling Haaland.
What comes next?
One positive for the Three Lions is right-back Reece James, who's been with the group in the days leading up to the game, meaning he could now be in contention to start.
Guehi is optimistic he can be involved in some capacity, and while it's not being viewed as a serious issue, his fitness is a concern.
News on the duo comes following FIFA's confirmation that Jarell Quansah will serve a two-match suspension after his red card in the second-half of the Mexico victory.
The World Cup quarter-final against Norway is scheduled for Saturday, and England will be hoping to have Rice and Guehi available.
The absence of Rice and Guehi would be a significant blow to England's chances, but the team is still confident of progressing to the next round.
England's victory over Mexico in the round of 16 was a significant result, and the team will be looking to build on that momentum.
The presence of Erling Haaland in the Norway team is a concern for England, but they are still favorites to win the match.
The fitness of Rice and Guehi will be closely monitored in the lead-up to the match, and England will be hoping to have them available for selection.
The World Cup quarter-final against Norway is a crucial match for England, and they will be looking to win and progress to the next round.
The team's preparation for the match has been affected by the absence of Rice and Guehi, but they are still confident of getting a good result.
The match against Norway is scheduled to take place on Saturday, and England will be looking to win and take a step closer to the World Cup final.