MILAN (AFP) - Italian giants Juventus said on Sunday (April 18) that they could not guarantee that the breakaway Super League project would take off as they confirmed they were among the 12 European clubs involved.

Three Italian teams Juventus, Inter Milan and AC Milan released statements confirming they are among the founding teams.

"Juventus expects the Super League to create long-term value for the company and for the football industry as a whole," the reigning nine-time Serie A champions said in a statement.

"While the founding clubs will use their best efforts to implement the project within the shortest possible timeframe, at the moment the company cannot assure that the project will be eventually successfully launched or predict the exact timing of the project.

"Accordingly, the company does not have all the necessary elements to assess in detail the impact of the Super League on its financial and economic conditions and performance."

Organisers of the breakaway league said on Sunday the tournament will start as "soon as practicable".

Manchester United, Liverpool, Arsenal, Chelsea, Manchester City, Tottenham, Barcelona, Real Madrid and Atletico Madrid have also signed up.