Mikel Arteta has described Kai Havertz's hamstring injury as "an accident waiting to happen" and issued a rallying cry to his players to show "what you're made of" in his absence. The 25-year-old will undergo surgery and miss the rest of the season after sustaining the problem while defending a set-piece during the club's winter training break in Dubai earlier this week.

Arsenal manager Mikel Arteta has spoken in more detail about how Kai Havertz ended up getting a season-ending injury in training with the Gunners in Dubai.The Germany international has been a key