Lausanne, who are currently in fourth place in the Swiss football championship, have dismissed their manager, Pierre-André Schürmann, effective immediately.
A brief, official statement explained that the club had ended its contract with Schürmann 18 months before it was due to expire.
The move comes after weeks of speculation that the club president, Waldemar Kita, was unhappy with Schürmann, despite remarkable results on the European stage.
Lausanne made it to the third round of the UEFA Cup competition before they were knocked out by the French side, Nantes. Lausanne is currently in fourth place in the Swiss championship.
Schürmann led Lausanne to victory in the Swiss Cup in 1999. Last year, they made it to the Cup final, but were defeated by FC Zurich.
Earlier this month, Lausanne announced they are selling their top striker, Javier Mazzoni, to the Spanish side of Racing Santander.
swissinfo with agencies