Arsenal Lodge Improved £25m Bid for Celtic Star Kieran Tierney

​Arsenal have made a new £25m bid for Celtic left-back Kieran Tierney, with Unai Emery desperate to bolster his defence at all costs. The Scot has been one of Arsenal's primary transfer targets this summer, with the Gunners seeing an initial £15m bid knocked back by Celtic. Now, ​BBC Sport state that ​Arsenal have lodged an improved £25m bid for Tierney, which would make him the most expensive sale in the history of Scottish football. The Gunners were ​thought to be preparing a bid of £20m,... Via All the latest breaking football news, transfer rumours, analysis, and match reports - 90min http://www.90min.com/