Arsenal's pre-season has already began under a cloud following the rejection to participate in the US tour by club captain, Laurent Koscielny. And matters seem to have gotten even worse, according to the Metro.

This is after Xavier Amaechi has deleted every trace of the club from his social media accounts after being left out of the travelling squad by Unai Emery.

The 18-year-old impressed for Freddie Ljungberg's Under-23 side last season and with the Swede having recently been promoted to Emery's first team coaching set-up, Arsenal's promising crop of youngsters are expected to be given chances to stake claims for first-team opportunities.

Emery included the likes of Reiss Nelson, who spent last season on loan at Hoffenheim, Emile Smith Rowe, Bukayo Saka and Tyreece John-Jules in the touring party ahead of matches against Colorado Rapids, Fiorentina, Bayern Munich and Real Madrid. Amaechi, however, has been left behind and will remain with the U23 side now coached by Steve Bould.