The fitness of Lamine Yamal, Spain's 19-year-old winger, has become a concern ahead of the World Cup final.
Yamal has been nursing a hamstring injury throughout the tournament, but has managed to play every minute of the knockout stages so far.
However, it is clear that he is not at his best, recording just one goal and no assists in seven appearances.
Yamal's involvement in the final could be in doubt now, after he missed training on Thursday and was pictured wearing strapping on his left thigh.
The winger was filmed sitting on a yoga mat on the pitch and seemed to be in some discomfort as he spoke to his head coach.
Yamal was not the only Spain player to miss training, with Pedro Porro, the Tottenham right-back, also on the sidelines.
Porro has been impressive at the World Cup, scoring twice, including in the semi-final against France.
Multiple Spanish outlets report that Yamal and Porro's absence is nothing to be concerned about, and that their head coach is simply managing their workload ahead of the biggest match of their lives.
However, the situation is still a cause for concern, and it will be closely monitored over the next few days as all eyes turn to the MetLife Stadium in New Jersey.
The World Cup final is shaping up to be a highly anticipated match-up, with many fans eager to see Spain's young talents face off against some of the world's best players.
Many have billed the match as the battle between two generational Barcelona talents: Yamal and Lionel Messi.
Spain captain and top scorer Mikel Oyarzabal has expressed his excitement about the prospect of winning the title, saying, 'Hopefully we can put the icing on the cake in five days' time.'
Oyarzabal's words will surely be a source of inspiration for his teammates, as they prepare to face off against Argentina in the World Cup final.
