Arsenal legend Ian Wright has praised Kai Havertz’s “gnarliness” in wake of the Gunners’ Champions League last-16 win over Porto. The Arsenal icon, speaking on Wrighty’s House after the game, says he quite likes the fact Havertz “can’t help himself”. Havertz is now firing on all cylinders for the Gunners after needing half a season or so to acclimatise to his new club. The 24-year-old impressed in Arsenal’s win over Porto and even showed a more ‘dark arts’ side to him. Havertz was involved in a touchline altercation with Porto boss Sergio Conceicao during the match. The Arsenal man collided wi…