Arteta:Partey to have MRI scan
Arsenal midfielder Thomas Partey will have an MRI scan this weekend after coming off injured in the FA Cup fourth-round defeat at Manchester City.
Partey was substituted at half-time in Friday night's loss as he was replaced by Albert Sambi Lokonga.
Arsenal boss Mikel Arteta confirmed the Ghanaian, who has been an influential part of their season, was in "some discomfort".
Arteta said: "He had some discomfort and it was getting worse and worse.
"He was uncomfortable to continue. (Saturday) or the day after he will have an MRI scan and see what he has.
"We have at the moment the injury of Mo (Elneny). It is not possible to get him fit. (Albert) Sambi has come in and has done well.
"It is true Thomas is a big influence and a big personality and in the second half we didn't have him."
The Gunners are on the lookout for a new midfielder before the transfer window closes and any serious injury to the 29-year-old could accelerate those plans ahead of Tuesday's deadline, with Mohamed Elneny currently out injured.
The south-coast club insist Caicedo is not for sale in this January transfer window, but Arsenal remain interested and are deciding whether to go back in with an improved offer.
Late on Friday night, the Ecuador international released a social media post asking Brighton to take up a 'magnificent opportunity' following Arsenal's £60m bid.