Arsenal are reportedly concerned that defender Rob Holding will miss the rest of the season due to a cruciate knee ligament problem.
MailOnline Sport relayed the worrying news on Thursday:
Earlier in the day, Gunners boss Unai Emery said he wasn't expecting positive news regarding the 23-year-old's condition.
"We are waiting until the club can give us communication about this, but the doctors they are looking at him still," he said, per Tom Bage of Football.London. "At the moment, my first news is not good, but I need to confirm."
Sami Mokbel of the Daily Mail provided the latest on the condition of the centre-back: "Holding has been undergoing numerous tests to determine the extent of the injury. But there is real concern that Holding could have damaged his cruciate. Arsenal are still to confirm the extent of the injury and will hope for positive news in the next 24 hours."
Holding was stretchered off against Manchester United in their Premier League match at Old Trafford following a tangle with Marcus Rashford and was replaced by Stephan Lichtsteiner.
It wasn't the only injury the team suffered on the night, with Aaron Ramsey also withdrawn from the action at the break due to a back pain. However, the Welshman's issue appears a lot less severe than that of his team-mate.
Per James McNicholas of Gunnerblog, the timing of the injury is unfortunate for Holding, as he was enjoying an impressive spell in the Arsenal XI:
In recent weeks, he has looked comfortable as part of a three-man defence, linking up with the likes of Shkodran Mustafi and Sokratis Papastathopoulos.
Holding provides something different to the team's other central defenders at his best. The former Bolton Wanderers man can move quickly across the ground and is composed when it comes to distributing the ball from deeper positions.
However, without him, the team suddenly look a little short of depth at centre-back, especially with Laurent Koscielny still on the comeback trail following his own lengthy injury layoff.