The Arsenal squad took part in an intense training session at London Colney on Wednesday ahead of their Europa League game against Red Star Belgrade.
We won the reverse fixture in Serbia last month when Olivier Giroud struck an acrobatic effort in the closing stages of the match.
Our club photographer was at London Colney and sent back these exclusive images.
Copyright 2019 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source.