Tierney has also been linked with moves to some of England's bigger clubs, but so far Celtic have managed to keep hold of him.
"It was a massive massive game," the boyhood Celtic fan said about Liverpool's game against Roma."'It's a Champions League semi-final and he did brilliant.
"It was a great performance from him and he's been great this season, he deserves to be there, but for me when I was younger, it was Celtic.
"If you want to play in the Champions League you play in it with Celtic and that's just the way it has been for me.
"All I really think about is Celtic."