Kieran Tierney's teammates old and new congratulated him on his return to action against Nottingham Forest yesterday evening.

Ex-Celt Tierney made his long-awaited debut for Arsenal in the Carabao Cup after signing on deadline day.

The £25million man played 77 minutes in a 5-0 home romping at the Emirates.

Arsenal fans gush over Kieran Tierney debut and joke he's 'best left-back in the world'

And pals including the likes of Alexander Lacazette and Sead Kolasinac congratulated the left-back.

Lacazette shared a clip of Tierney being replaced to a standing ovation with the caption "Eazy K".

In the footage he can then be heard saying: "My G".

Kolasinac also shared a snap of Tierney's jersey alongside fellow returning players Hector Bellerin and Rob Holding, saying: "Great to see you on the pitch."

Other friends of the Scot shared their delight - including various Celtic stars who played alongside him before his move.

Mark Hendry: Arsenal's Kieran Tierney is throwback in an era of badge-kissing and pandering - no wonder fans love him already

Luca Connell, Calvin Miller and Mikey Johnston all shared celebratory and applauding emojis to signify their support.

Jonny Hayes wrote: "Well done brother! Absolute blue steel in that last photo!!"

Patrick Roberts also posted smiley emojis for his best mate.

Gunners teammate Holding said: "Well done brother", while goalkeeper Emiliano Martinez wrote: "On fire bro".

Tierney had been out for months with a thigh injury and hip issues.