Aiden McGeady scored the winner against Falkirk

He said: "The manager always wants to make me work hard and be constantly aware of things.

"I didn't know what defence was about until he taught me about tracking back and heading but it's all a learning experience and I feel better for it.

"I'm feeling more responsibility. I'm not the young guy any more."

The 20-year-old Republic of Ireland international is currently winning the battle with Shaun Maloney and Derek Riordan for the position on the left-hand side of the Celtic's four-man midfield.

And he vindicated his selection against Falkirk with the only goal of the game which keeps the champions at the top of the Premier League table.

"It's expected of me now to make this sort of impact and I thrive on it," he added.

McGeady then laughed off claims by his former team mate John Hartson over the weekend that he is worth �20m.

He said: "The fitness coaches teased me about that. It is nice to get praised but you don't take it too seriously or get wound up about it."