Diarra has been without a club since leaving West Ham United last July and his wait to find a new home goes on as he is no longer training with the Fire.
The 32-year-old midfield enforcer started in Chicago’s 1-0 friendly win against Queens Park Rangers last week and head coach Frank Yallop revealed after the game that he was pleased with what he saw but that a “calculated decision” was to be made.
“I thought he did a nice job in the middle of the field. He’s obviously a very experienced player so it was an opportunity to look at him close up,” Yallop said.
“It’s only 45 minutes and you can’t judge a guy on that so we’ll see how the next phase of the decision goes. I need to talk to him, see where his head’s at, see what we’re looking at and make a calculated decision on it.”
That decision has seen Diarra’s short time with the Men in Red come to an end just two weeks before the start of the 2015 MLS season.
The former Liverpool and Bayern Munich midfielder has spent most of his career in France and he may now return home in the hope of finding a new club as his time as free agent draws close to one year.