Kieran Tierney became, alongside David Luiz, one of two significant signings Arsenal made on the last day of 2019’s summer transfer window when they paid Celtic £25m to recruit the then 22-year-old in an attempt to strengthen what had long been an unsettled defence. The promising full-back, who for even longer had been considered one of Scotland’s finest prospects, made an encouraging start under Unai Emery, and has since continued to progress under Mikel Arteta, Emery’s successor.
Arsenal are demonstrating wider signs of improvement under Arteta, who has so far shown faith in their younger players, and under his management Tierney is expected to continue to improve. “In the first week working with him, I could see after two or three days why there was a lot of clamour for him,” said Brendan Rodgers, who managed Tierney at Celtic, when the Scotland international joined Arsenal. “I’ve got no doubt he will do very, very well in his time.”