Carney Chukwuemeka underwent knee surgery following the injury he suffered while playing for Chelsea against West Ham on Sunday.
The PA news agency has learned that the 19-year-old, who scored his inaugural club goal during their 3-1 loss at the London Stadium, will be out of action for around six weeks.
The former Aston Villa midfielder faced difficulties in securing playing time last season, having joined the team a year ago for £20 million. However, Chukwuemeka has now commenced both of Mauricio Pochettino’s first two Premier League games in charge.
Chukwuemeka had surgery on Monday night after his substitution 15 minutes before the end of his team’s loss in East London, which represented the first defeat during Pochettino’s tenure.
Chukwuemeka will be out for around six weeks
Previously, he had leveled the score against Nayef Aguerd’s headed goal by cutting inside and unleashing an unstoppable right-footed strike past goalkeeper Alphonse Areola.
This marked his inaugural goal in 17 appearances across all competitions since joining Stamford Bridge.
In the second half, the Hammers clinched the victory with goals from Michail Antonio and a penalty converted by Lucas Paqueta, following a missed penalty by Enzo Fernandez for the visiting team.