West Ham are enduring a real injury crisis in defence, with Carl Jenkinson, James Collins and Winston Reid all currently sidelined.
The Hammers ended Saturday's 2-0 defeat at Liverpool with a centre back pairing of Alex Song and Joey O'Brien - neither are recognised centre backs.
No deals materialised though, leaving West Ham short of defensive cover - and no long-term replacement for the aforementioned Reid, who is out of contract at the end of the season.
With the transfer window now closed, West Ham will have to resort to free agents if they are to add another defender - but one player does stand out from the crowd of unattached players.
Former Everton centre back Joseph Yobo remains a free agent having left Fenerbahce at the end of last season, having spent the second half of the campaign on loan at Norwich.
Now 34, Yobo has bags of experience and knows the Premier League inside-out. He showed during Nigeria's World Cup campaign that whilst he may be coming towards the end of his career, he still has enough in the tank to be considered a short-term option.
Reports from Nigerian website SL10 suggest that West Ham may have already made contact with Yobo, which would mean reports from the Daily Sun that Yobo has turned his hand to politics are wide of the mark.
Yobo is far from a long-term solution for West Ham, but as a short-term, post-transfer window addition to ease an injury crisis, they could do a lot worse than signing Yobo.