Sporting Lisbon midfielder Agostinho Ca faces a massive penalty clause should he sign for Barcelona.

The teen is expected to pen terms with Barca as early as today.

But agent Paulo Rodrigues told calciomercato.com he has an agreement with Inter Milan for Ca and the deal should stand as the youngster is his client.

He claims the transfer to Barca was done without his knowledge and he is ready to demand €1 million in compensation and also may take the case to the Court of Arbitration in Sport.