Former Newcastle midfielder Sylvain Marveaux was among four people arrested in France on Wednesday as part of the tax evasion probe.
Paris Saint-Germain beat Montpellier 2-0 on Saturday to move three points clear of Monaco at the top of Ligue 1.
Monaco restored their three-point lead over PSG at the summit of Ligue 1 after coming from behind to defeat Dijon.
Monaco extended their lead at the top of Ligue 1 as Radamel Falcao's second-half goal secured a 1-0 win at Angers.
Mario Balotelli struck from the penalty spot as Nice came from behind to beat Bordeaux 2-1 on Sunday, while Lyon drew with Rennes.
Memphis Depay scored from near the halfway line as Lyon rode their luck early before crushing Toulouse 4-0 on Sunday.