Arsenal captain Laurent Koscielny said he finally had a smile back on his face after making a successful comeback from a seven-month injury layoff in Thursday's 1-0 Europa League victory over Qarabag.

FILE PHOTO: Soccer Football - Europa League - Arsenal Training - Arsenal Training Centre, St Albans, Britain - November 7, 2018 Arsenal's Laurent Koscielny, Matteo Guendouzi and Henrikh Mkhitaryan during training Action Images via Reuters/John Sibley