Johannesburg - Suspended Cosatu general secretary Zwelinzima Vavi is expected to take his employers to the High Court in Johannesburg on Monday over his suspension.
On February 13, Vavi was still discussing the possibility of legal action against the Congress of SA Trade Unions, plus an auditing firm.
"He is consulting with his lawyers to determine what course of action to take against both the firm and Cosatu," Vavi's spokesperson John Dludlu told Sapa at the time.
"Until that consultation is complete we are not commenting on anything."
On February 12, the Mail & Guardian reported that Vavi intended suing Cosatu and SizweNtsalubaGobodo for defamation, after the release of a damning report against him.
The report by the firm found irregularities relating to the purchase of a new Cosatu building and the selling of the old one.
Vavi was suspended last year after he admitted to having an affair with a junior employee. She initially accused him of rape but did not lay charges with police.