Arsenal have decided to sell one of their players for a bargain fee this summer. The summer transfer window will open in the middle of June, and all eyes will be on who Edu Gaspar and Mikel Arteta will bring to the Emirates Stadium. However, a number of players could be sold by Arsenal as well, and the Gunners may have to accept big losses on some of them. Arsenal set Kieran Tierney price tag Arsenal signed Kieran Tierney from Celtic for £25 million in the summer of 2019. The Scot became an instant fan favourite at the Emirates. Everyone in and around the club loved him, and he produced a few …