On a dismal evening for Mikel Arteta, Arsenal slumped to a 2-0 defeat against Bournemouth in a Premier League encounter on Saturday. Arsenal never really got going in this match, and their task was made all the more challenging with 30 minutes on the clock as William Saliba was sent off for denying a clear goalscoring opportunity. Mikel Arteta’s side looked even more disjointed having been reduced to ten men, and clearly suffered in the final third due to the injury-enforced absences of Bukayo Saka and Martin Odegaard. The hosts took a 1-0 lead after the break, before David Raya brought down C…