Former Nottingham Forest midfielder Pajtim Kasami is among nine players sacked by FC Sion after the Swiss league was halted indefinitely by the coronavirus pandemic.
Dismissals also include former Arsenal players Alex Song and Johan Djourou.
The players are said to have refused to sign an agreement for a wage cut during the indefinite suspension of the Swiss top flight.
The Swiss league was stopped on March 1 after the government banned gatherings of more than 1,000 people.
Sion are eighth in the 10-team Swiss Super League and only four points clear of the relegation zone with 13 games left to play.
Kasami spent a season on loan at the City Ground from Olympiacos, playing 25 league games for the Reds during the 2016-17 campaign.
