Arsenal summer signing Kieran Tierney has made an instant impression in training following his transfer from Celtic.
The Gunners snapped up the Scottish left-back on Deadline Day in a transfer worth up to £25 million. He arrived injured but the 22-year-old has already broken a long-standing Arsenal record in his first training session.
Tierney passed his medical and stunned Arsenal doctors as well as Rob Holding with his hands-on-hip vertical jump.
He recorded an impressive 50cms off the ground in his first attempt. The Arsenal medic team then relayed Pierre-Emerick Aubameyang's record to him.
Tierney's subsequent effort saw him surpass Aubameyang's record by one cm as he put down an incredible 55cm.
Tierney's set to return to full training in four to six weeks which means he could make his Arsenal debut against Manchester United on September 30 at Old Trafford.
Speaking at the club's training ground, he said: "I'm injured now, but I'm just looking forward to getting back on the pitch, training and getting involved with the squad.
"I've been working hard in rehab and I've had good people around me as well. It's been easy for me. At Celtic I was training hard, working hard and just looking to get back fit. That was my main focus.
"I'm just getting back fit now, I'm just getting back involved with a ball and back running. So hopefully it's not going to be too long."
Arsenal begin their Premier League campaign against Newcastle United at St James' Park on Sunday.