“All people’s recognized for a couple of months and simply to be right here with the Celtic strip on once more simply feels wonderful.
“If you transfer away from residence, you develop up, you study various things. I used to be in Spain for a 12 months, studying a unique language and enjoying in a unique league, so I am positively a unique individual.
“Participant-wise, it is the identical as I all the time say – I will attempt to work my hardest, I will do my finest for the membership and that is all I can do.”
Tierney had gone on mortgage to Sociedad after falling out of favour underneath Mikel Arteta amid damage issues and didn’t turn out to be a daily starter on his return, and all however 4 of his 20 appearances this season have been in its place.
Whereas within the closing few months of his contract at Arsenal, Tierney’s return to Celtic Park had been confirmed in February.
This season, Brendan Rodgers’ facet received the Scottish Premiership and League Cup, whereas additionally reaching the knockout stage of the Champions League.
The Celtic boss stated: “He’s such a gifted, top quality participant and he might be an enormous addition to our squad.
“We’re so happy to carry such an elite participant again to the membership and I stay up for working with him once more and the remainder of the squad, as we face the various challenges forward at residence and in Europe.”
Tierney arrives amid uncertainty about the way forward for fellow Scotland left-back Greg Taylor, whose contract is ending this summer season.

