Berra, who won his first cap for his country last month, said: "I have two years to get to a World Cup and to try to break into the team. I want to play for Scotland but I know how difficult it's going to be because Gary and Stephen have done a superb job for Celtic and for the country.
"But I'm part of the squad now and I have to aim to make the breakthrough - no matter how difficult that might be."



