 Di Gunners appoint Arteta as dia manager to replace Unai Emery on 20 December , 2019 but even im presence for di touchline no fit do anytin as Bournemouth score for first half .  O B-ORG O B-PER O O O B-PER I-PER O B-DATE I-DATE I-DATE I-DATE O O O B-ORG O O O 