Like it has for many Arsenal players over the break, it’s been a busy week or so for Kai Havertz who played 180 minutes in Germany’s Nations League games. Although Julian Nagelsmann often used the Arsenal man as an out and out number nine at the Euros, Havertz was deployed as a #10 in both games during this break. Even without West Ham United’s Niclas Fullkrug, who succumbed to an injury after the first game, the Germany manager opted not to deploy Havertz as the nine. Havertz impressed against Hungary, and Nagelsmann instead chose to start former Brighton & Hove Albion striker Denis Undav jus…