Midfielder Dele Alli missed England training on Thursday as his thigh injury continues to be monitored before Sunday’s match against Panama.
The Tottenham player suffered the problem during the 2-1 victory over Group G rivals Tunisia, although he managed to play for 80 minutes.
The 22-year-old tweeted on Wednesday that it was “a slight injury”.
Meanwhile, manager Gareth Southgate has discarded his sling as he recovers from a dislocated shoulder.
The 47-year-old fell during a run near England’s World Cup camp in Repino and was treated in a nearby hospital.
“The doc has made it clear punching the air is not an option,” said Southgate, who jumped in the air celebrating Harry Kane’s injury-time winner in Monday’s win.
“I might not be celebrating any goals as athletically in future.”