Arteta has confirmed that one of the club’s in-form players has been added to the Gunners' growing injury list.
Arsenal's 1-1 draw with Brighton & Hove Albion has been overshadowed by an injury to young star Ethan Nwaneri.
The 17-year-old, who made history by becoming the youngest player to score in consecutive Premier League appearances, was forced off at half-time with a muscular problem.
Brighton fought back to equalise with a controversial penalty, converted by Joao Pedro. Despite late pressure from the Seagulls, Arsenal held on for a draw, but the result was overshadowed by Nwaneri's injury and the contentious penalty decision.
What Arteta said about Nwaneri’s injury
Nwaneri's impressive performance, which included a coolly taken goal, was cut short due to the injury. Arsenal manager Mikel Arteta confirmed the setback after the match, although the severity of the issue remains unclear.
Nevertheless, it is a blow for Arsenal, already without Bukayo Saka and Raheem Sterling due to injury.
10:29 - 28.12.2024
Bukayo Saka: Mikel Arteta confirms Arsenal's worst fears
The Spaniard has revealed the extent of Saka’s injury after beating Ipswich on Friday.
"Really bad news because I think we've lost him, we had to take him off at half-time with some muscular issues," the Gunners boss said on BBC Match of the Day at full-time.
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Nwaneri's participation in Arsenal's upcoming EFL Cup semi-final first leg against Newcastle United is now in doubt.
The Gunners will be hoping for a swift recovery, but Arteta will need to rely on other attacking options in the meantime.
What next for Arsenal?
Arsenal face Tottenham Hotspur in the North London derby on January 15, after playing Newcastle United in the EFL Cup semi-final first leg on January 7 and Manchester United five days later in the FA Cup.