Arsenal are facing an anxious wait to discover the extent of a knee injury suffered by Kai Havertz, with the Gunners considering signing a new player as cover.
Havertz came on as a second-half substitute against Manchester United on Sunday, but he has since sustained a knee problem and did not take part in an open training session on Wednesday.
The Athletic reports that assessments are at an early stage, with the anticipated lay-off time still unclear.
There will be more to follow on this breaking news story and Liverpool.com will bring you the very latest updates, pictures and video as soon as possible.