Arsenal scouts have been watching Celtic's 19-year-old left back Kieran Tierney consistently this season, according to the Telegraph. This would meant that manager Arsene Wenger could well be looking to invest and reinvent the Gunners' left side of defence, with Nacho Monreal's form tailing off badly at points this season, and Kieran Gibbs failing to hold down a regular starting role. Having already secured the services of non-league full back Cohen Bramhall, Wenger could be looking to...
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