He Tweets that FIFA has blocked him from playing in England.
Yesterday Sam Allardyce even claimed the deal for the 29-year-old was close to being done. The BBC Sport website quoted the West Ham boss as saying:
"He would be another flair player that needs a stage to say 'look at me, here I am, I am still capable of producing the level of football I have produced in the past, at Chelsea and Real Madrid'.
"I think he is hungry to play football again. I think he has a bit to prove to himself as he has been nine months in the wilderness. It's an awful long time and I think he's realised just how quickly you can be forgotten in this game."
Diarra has not played in England since leaving Portsmouth for Real in 2009. From there he went on to have a career in Eastern Europe, first with Anzhi Makhachkala and then with Lokomotiv Moscow - whom he left in August.
The free agent, who has won 28 caps for France, looked set to be on his way to Upton Park but judging by his Tweet earlier today, that will not be the case.
Diarra has Tweeted a message suggesting that FIFA has banned him from playing in France, Germany, Italy and, crucially, England.
1)Thanks to the FIFA again you did a great job you dont let me play in France, Germany, Italy and England so maybe in jamaica you will...— Lass Diarra (@Lass_Officiel) February 11, 2015
2) In fews days i will explain everything the real story with my ex-team with the FIFA everything not the fake version..— Lass Diarra (@Lass_Officiel) February 11, 2015
3) since the beginning of this story I received a lot of support from you guys thanks a lot i really appreciate one love G5....— Lass Diarra (@Lass_Officiel) February 11, 2015
It is not known why FIFA would have banned him. However it could have something to do with the way he left Lokomotiv. He was reported to have been sacked by the club in August after refusing to train, following a massive fall-out with gaffer Leonid Kuchuk, according to the Daily Mail.
Now it looks as though that, for now, West Ham will not be signing Diarra in the near future.