Shippping magnate and Olympiakos owner Evangelos Marinakis ordered his players to go on holiday and fined the club 400.000 euros (£350,000) following poor results.
The Greek champions are third in the Super League after three wins in eight games. Olympiakos have been crowned champions of Greece 44 times but currently they are three points behind leaders AEK Athens.
Three years ago Marinakis fined his team 500.000 euros for their performances.