Brendan Rodgers has made six summer signings in the transfer window so far.
The most recent is left-sided defender Hayato Inamura from Albirex Niigata for £250k, who will not be included in the first-team from the off.
Benjamin Nygren signed from FC Nordsjælland for £2m, while Callum Osmand was a free transfer from Premier League side Fulham.
Ross Doohan and Isaac English have also joined, but one stands out above the rest.
Keevins hails the return of Tierney
Kieran Tierney rejoined the Hoops on a five-year deal after his contract with Arsenal expired. The left-back is quite simply back where he belongs.
And Daily Record columnist Hugh Keevins says while Tierney has had his injury problems, his spirit inside the Celtic dressing room will be invaluable to Rodgers.
Keevins wrote: “Tierney is an icon in the eyes of the Celtic support.
“Rodgers had clearly gone out of his way to look the defender in the eye and establish the depth of his commitment surrounding what will always be put into written and verbal short-hand as an “emotional return” to the club he has supported from boyhood.
“Celtic are getting Tierney at the age of 27, a mature individual compared to the youngster who had his teeth rearranged by Aberdeen’s Jayden Stockley during the 2017 Scottish Cup Final.
“But who raced from Hampden, underwent dental treatment and was back for the presentation of the trophy he dramatised by grabbing cup and club badge on his shirt at the same time.
“Tierney’s body might have suffered the ravages of time in the game since then but his spirit is imperishable and his manager will need that quality in his dressing-room over the months ahead.
“Particularly since Kieran will replace the outgoing Greg Taylor, now with PAOK in Greece.”
Celtic’s Tierney is only 28 years old
Rodgers told the BBC a few days ago that he is particularly happy that Tierney is returning to Celtic at the age of 28, not in his mid 30s for example.
He also noted that he spent time with Tierney in the close season, with the full-back now
The Celtic boss said: “I’m absolutely delighted. We’re getting a top player back. Sometimes top players like that might come later on in their career.
“But we’re getting Kieran at 28 years of age. I was with him during the summer so I know first hand how excited he is to be here.”
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