Jude Bellingham appeared to show his frustration with an England teammate during the Three Lions' first training session in Florida as preparations for the World Cup gathered pace.
Thomas Tuchel's squad were put through their paces under the blazing American sun on Thursday, with temperatures and humidity providing an early taste of the conditions they could face during the tournament.
While the atmosphere around camp appeared overwhelmingly positive, one moment involving Bellingham has come to light.
The Real Madrid star, widely regarded as one of England's most influential players, was heavily involved throughout the session and once again demonstrated the authority he carries within the squad.
At one stage, Bellingham called for possession but appeared unimpressed by the quality of the pass that followed.
The Daily Mail noted the midfielder directing a side-eye glance towards the team-mate responsible, seemingly indicating that he expected the ball to arrive with greater pace.
The moment was brief but offered a glimpse into the standards the 22-year-old demands from both himself and those around him.
Bellingham looked sharp throughout the workout and was among the standout performers during England's opening session on American soil.
Jude Bellingham appeared to show his frustration with an England teammate during the Three Lions' first training session in Florida as preparations for the World Cup gathered pace
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Jude Bellingham was put through his paces in Florida as he looks to become a key player for England at this summer's World Cup
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There was further evidence of his confidence during a break in training when he produced one of the most eye-catching moments of the day.
Bellingham struck a new Adidas Trionda ball from around 50 yards and sent it crashing against the crossbar, drawing admiration from those watching on.
His father, Mark, was among a group of family members present at the session as England stepped up their preparations for the tournament.
Bellingham's importance to Tuchel's plans was also underlined by the release of England's squad numbers.
LATEST SPORTS NEWS:
England's record at the World Cup | GETTY/ GB NEWSThe midfielder has been handed the No 10 shirt, a move many supporters will interpret as confirmation of his status as one of the central figures in England's World Cup bid.
Elsewhere, the mood remained upbeat despite the intense conditions.
Anthony Gordon was heard joking with former Newcastle team-mate Dan Burn during one finishing drill, demonstrating that their friendship remains intact despite Gordon's recent move to Barcelona.
Tuchel largely observed proceedings rather than actively participating, moving between groups with a whistle and stopwatch as he monitored standards.
The England manager also found himself battling the Florida heat, at one point taking advantage of sprinklers positioned around the training ground.
Jordan Henderson, meanwhile, continued to play a key leadership role within the squad.
The veteran midfielder was heavily involved in organising drills and later explained the importance of what England have internally labelled "invisible work".
"It's the little things that not everybody will see, but we notice and understand the importance of as a team," Henderson said.
England players seem to be in good spirits as the World Cup looms
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"We have to be ready to sacrifice for each other."
Captain Harry Kane also looked in excellent condition after another prolific season with Bayern Munich.
The striker led the squad onto the training pitch and was fully engaged throughout the session, even completing extra press-ups after his team lost one challenge.
England's World Cup campaign kicks off against Croatia on June 17.