John McGinn is 'really pleased' that Kieran Tierney is joining Celtic this summer.
The left-back has signed a pre-contract to return to Parkhead after six years at Arsenal.
McGinn, who regularly plays with Tierney for Scotland and is a known Celtic supporter, thinks the move is ideal for all parties.
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He said [Sunday Post]: "I'm really pleased for Kieran. He is an unbelievable footballer and totally dedicated to his profession. Celtic is his club, and I would imagine he is really excited about going back and playing again under Brendan Rodgers.
"I've no doubt Kieran will add extra quality to the squad, and his experience will be invaluable as they push towards remaining the dominant team in the country.
"It's also about progress in Europe, and Kieran will want to help the club into the Champions League. It's the tournament every footballer wants to be involved in. So, I wish Kieran well, but he also has plenty to look forward to with Arsenal in the next few weeks, and he'll be desperate to go out on a high."
Tierney made 170 appearances during his initial Celtic spell and was part of the indomitable side that won a treble in the 2016/17 campaign under Brendan Rodgers.
He has since had an injury-ravaged spell at Arsenal, although he remains a regular member of their first-team squad as they seek Champions League glory.
The North London outfit dumped Real Madrid out of the competition on Wednesday evening, with Tierney featuring in both legs of the tie. They now face Paris Saint-Germain in the semi-finals as they aim to go all the way.