Kieran Tierney was billed as Scotland's golden boy in an admittedly lacking generation of footballers. That has mainly rung true for the Celtic academy graduate in a so far glittering career - although he has fallen in a competitive battle recently.
An Unai Emery signing, the Isle of Man-born star moved to the Emirates Stadium in 2019 for a fee of £25million - which remains Celtic's record sale so far, and could be for a while before Jota, Liel Abada or another of their star-studded squad move on. Life in north London also started superbly for the Motherwell-raised starlet, although Emery was canned just six months after Tierney's move down south - and Mikel Arteta has been his boss ever since.
Still, an FA Cup and Community Shield double in the lockdown-plagued summer of 2020 was an example of what was to come in Tierney's Gunners career, and with Arteta steering the ship life looked good on the face of things. Yet with two eighth-placed finishes in Arteta's first year-and-a-half, league performances had to change.
