Celtic star has a 'massive heart' and deserves call-up

The young defender was named in Sebastien Pocognoli's Scotland squad following his start to the season. O'Neill said the recognition was well-deserved and could further support Donovan's progress.

Speaking to Celtic Player, manager O'Neill said: "I am delighted for him, absolutely delighted. He’s got a massive heart.

"There are obviously parts of his game that he can tidy up, which he is willing to do."

O'Neill also commended Donovan's approach at the training ground and his eagerness to improve. He continued: "He’s a great character as well too. He never seems to be down at all, and always has that proverbial smile on his face.

"Coming into training, Colby wants to work hard, he wants to learn, and this is great for him, really great."

The call-up comes after Donovan has become an increasingly important player for Celtic.

It also offers the right-back an opportunity to work at international level under Scotland’s new manager.

O'Neill believes the chance could raise Donovan’s confidence. "Genuinely, it’s the icing on the cake, isn’t it, really? And with Scotland qualifying now for competitions, it would be great to be involved with that.

"But it’s a big lift, and that will give him a big boost of confidence as well."