Highly rated journalist has confirmed that Celtic have made an official bid for French defender Valentin Rosier.

Ekrem Konur had previously stated that the Sporting Lisbon star could be on his way to Marseille as a deal was meant to have been agreed at the weekend.

However, it now seems that Celtic have lodged an official bid of around £6 million as Ange Postecoglou makes his move for a first-team right-back.

With only Anthony Ralston left as a main choice for that position, Celtic must act fast to secure a proper right-back before any sort of football begins.

Although this bid was confirmed by a verified source, we don’t believe that Celtic will fork out that kind of money on one player.

If any deal will be made between the two clubs it could be on a loan to buy deal.