Celtic defender Virgil van Dijk is on the radar of Arsenal.
The Daily Mail says the Gunners made a deadline day enquiry for the Holland international but their move for the centre-half came too late.
But scouts will continue to keep tabs on Van Dijk in the coming weeks with a view to a possible move in January.
Arsene Wenger's side remains short of cover in central defence and the position will be an area the club will prioritise once the window reopens, with Van Dijk a serious contender.
