According to The Scottish Sun, Arsenal have tabled a £25 million transfer bid for Celtic left-back Kieran Tierney as manager Unai Emery looks to secure the signature of the youngster this summer. The Gunners have upped their last bid by £10 million this time out after the Hoops they were knocked back three weeks ago, and the Scotland international is expected to seal a move to North London any moment from now. Should Arsenal’s record-breaking £25 million transfer bid for Tierney be accepted by Celtic, the deal will become the biggest transfer in Scottish football history, breaking the earlier record of £19.