The Brazilian, 33, had been a star with Paris Saint-Germain before moving to Al-Gharafa in Qatar, and his arrival at West Ham in February was seen as a real boost for Allardyce, who needed attacking reinforcements after the season-ending injury to Andy Carroll.
Whilst Nene arrived with a reputation for being a goalscoring midfielder with a superb left foot, the Upton Park crowd have barely seen him in action.
With just six substitutes appearances totalling 63 minutes, Nene has made no impact in East London, and looks set to leave the club when his short-term contract expires this summer.
Yet, in a last ditch attempt to win a contract extension at West Ham, Nene has held 'showdown talks' with manager Allardyce, according to the Daily Mirror.
They report that Nene is 'fuming' with his role in the West Ham team, and is looking for an explanation why he hasn't been used despite West Ham's injury crisis in the final third.
The situation feels eerily similar to that of another South American attacker, Mauro Zarate, who was brought in but not played by Allardyce before leaving six months into his stay at West Ham, joining QPR on loan for the rest of the season.
It now seems that Nene's short-lived West Ham career is heading in the same way - unless Allardyce has a change of heart in the final three games of the campaign.