Declan Rice played through discomfort in England's 4-2 victory over Croatia, registering an assist for Kane before being substituted in the 72nd minute.
What happened to Declan Rice?
The Arsenal star has been dealing with nerve pain in his hamstring since December, managing the issue behind-the-scenes while playing for Arsenal.
He told ITV Sport: "I was feeling a little bit of neural pain in my hamstring, which I was managing from after Christmas with Arsenal for a very long time."
Why it matters for Declan Rice
The midfielder's comments come after a demanding campaign in which he played 55 matches for Arsenal, helping the club secure a Premier League title and reach the Champions League final.
Rice did not hide his frustration with the schedule, saying "it's an obscene amount of games, the schedule was crazy, but what can we do about it?"
What comes next for England?
England face Ghana in Boston on Tuesday, with a win guaranteeing progression to the last-32, and Thomas Tuchel may consider rotating his squad, with Rice among those potentially in line for rest ahead of the knockout stages.
Rice's substitution against Croatia was a precautionary decision, given the demands of the closing stages of matches, and he has since moved to reassure supporters that the issue has been carefully managed.
The 27-year-old's fitness will be closely monitored as England prepares to face Ghana, with Rice looking to play a key role in the team's bid to progress to the knockout stages.
As the World Cup continues, Rice will be looking to manage his nerve pain issue and help England succeed in the tournament, which would be a major achievement for the team and the player.
Rice's experience and skill will be crucial for England, and his ability to play through discomfort will be important as the team faces tough opponents in the knockout stages.
The England star has been in good form recently, helping Arsenal win the Premier League title and reach the Champions League final, and he will be looking to carry that form into the World Cup.
With the World Cup providing a platform for players to showcase their skills, Rice will be looking to make a major impact and help England achieve success in the tournament.