One Arsenal transfer target has just put Mikel Arteta on alert by rejecting the latest contract offer from his current club. Arsenal are considering options to upgrade their defensive contingent in this summer transfer window. Riccardo Calafiori is currently closing in on a switch to the Emirates Stadium. However, Mikel Arteta may still be keen to strengthen his squad in that part of the pitch even further. The Gunners have been linked with numerous defenders in recent weeks, and now one such mooted target has made a decision that could spark the North London club into action. READ MORE: Every…
