Nov 21 (Reuters) - An American-based investor group, led by Maurizio Fiori of Praxis Capital Management, has acquired a minority stake in Cagliari, the Serie A side said on Friday.

Cagliari, who are 14th in the Italian top-flight and sit three points above the relegation zone, received approval earlier this month to build a new stadium in the island of Sardinia, where they are based.

"The partnership is based on a shared long-term vision, focused on supporting the development of the new stadium project and driving the structural growth and strengthening of Cagliari Calcio," the club said in a statement.

"President Tommaso Giulini will retain full control and operational leadership of the club."

Cagliari are the latest Serie A side to attract investment from the U.S. in the last six years after Inter Milan, AS Roma, AC Milan, Atalanta, Hellas Verona and others.

(Reporting by Chiranjit Ojha in Bengaluru)

((chiranjit.ojha@thomsonreuters.com;))