Arsenal are closing on Celtic fullback Keiran Tierney.

The Mirror says they're still in the hunt to sign the Scottish defender Tierney – as Arsene Wenger looks to bolster his defence.

The Isle of Man-born left back would be seen as a replacement for Nacho Monreal and provide competition for Kieran Gibbs.

Tierney only made his debut in April 2015 but in the last two years has made giant strides, getting called up for the Scotland senior team and looking like a future Tartan Army captain.

And Wenger is keen to replace the 31-year-old Monreal with a long-term option to keep Gibbs on his toes.