Date of birth: June 5, 1997
Instagram: @kierantierney
Club(s): Celtic, Arsenal
Country: Scotland
Signing fee: £25 million
Was just 17 when he made his first-team debut for Celtic having progressed through the academy. Four years later, he left having won four Premiership titles, captained the club and been part of the historic treble treble winners. But injuries restricted his appearances in Glasgow - and in London after his move to Arsenal. Due to the presence of fellow left-back Andrew Robertson, he has had to play in a variety of positions for Scotland.
Latest about Kieran Tierney
Arsenal manager Mikel Arteta confirms exits of FOUR players
Arsenal are set for a busy summer when the transfer window opens
Arsenal transfer all but confirmed as manager explains soon-to-be announced deal
The Arsenal star looks to be on the way out of North London
West Ham United agree deal for out-of-favour Arsenal defender: report
Amid rumours that Julen Lopetegui is about to be sacked, the Hammers have lined up a potential new signing
Arsenal fan-favourite lined up for exit to boyhood club after six years away: report
Arsenal look set to lose a player that Gunners fans will be sad to lose
Scottish players who played abroad
A look at some notable Scots who turned out for clubs overseas
Arsenal manager Mikel Arteta may have just made a huge U-turn - and it could just give the Gunners the edge in the title race
Arsenal's trip to West Ham United may prove an interesting turning point in the title race - but not for the reasons you think
Arsenal could make transfer u-turn amid six-team chase: report
Arsenal could be ready to throw a lifeline to a fringe player
Arsenal star's time at club all but over, following major snub
Arsenal took on Bayer Leverkusen at the Emirates Stadium on Wednesday evening
