The Hoops goalkeeper was in fine form in matches against Germany, Austria and Croatia before Poland crashed out of the tournament.

His national team may have finished bottom of their group but Boruc did his own reputation no harm at all after earning rave reviews for his efforts.

He was the subject of constant speculation over his future last season and could now find himself targeted by a number of clubs, with AC Milan and Arsenal both believed to be among his admirers.

And, if an offer is tabled that tempts Boruc, 28, to quit the Scottish champions, former Celtic goalkeeper Hedman believes the club may find themselves with no option but to let him go.

"Celtic could find a struggle ahead of them to hold on to him," he told PA Sport.

"He seems like a strong character who speaks his mind and, if Celtic get an offer and he becomes aware that a big club wants him, there is no point trying to keep him because they will lose him mentally.

"There is only one way if an offer does come on the table - Celtic have to let him go."

Boruc penned a new deal in January which commits him to Celtic until 2011 and AC Milan coach Carlo Ancelotti admitted recently to being priced out of the market, following reports of a £10million price tag.

Hedman added: "£10million does sounds a bit much, especially for a goalkeeper.

"But Artur has showed for Celtic and the national team that he can cope with pressure and also the British game.

"He could be worth around £6million or £7million."

Regardless of a hefty asking price, Hedman - who spent three years at Parkhead between 2002-05 - has no doubt that Boruc will find himself in demand, with the European Championships effectively acting as a shop window for his talents.

"Definitely," said Hedman. "The one thing about Boruc is that he is not afraid of commanding his box and coming out for crosses.

"You don't see many goalkeepers coming out for crosses these days because the balls are faster.

"One goalkeeper who is in command of his box, despite making a mistake at the Euros, is Petr Cech. He is very brave and Artur is trying to be the same and he is doing it very well.

"I've seen all the games because I'm working for Swedish TV and I was very impressed by him.

"In the Austria game he was playing in front of 51,000 people, against one of the home nations, and he kept Poland in the game. He saved them.

"I thought he did fantastically well. He was calm and he spread that calmness throughout the team. He led from the back and that's massively important.

"A goalkeeper sending insecure signals can affect the rest of the team in a negative way, especially the younger players.

"Playing for Celtic can sometimes be a bigger pressure than playing in the European Championships, especially with a team like Poland who no-one really expects to go through and win it.

"With Celtic you are expected to win all the time and that's a big difference."