ARSENAL exacted sweet revenge on West Ham United with a 6-0 away thrashing to stay right in the thick of the Premier League title race, obliterating their hosts before halftime. Mikel Arteta's side had lost twice against their London rivals this season but were 4-0 ahead by halftime with goals by William Saliba, Bukayo Saka, Gabriel and Leandro Trossard. The punishment continued in the second half with Saka making it 5-0 before former West Ham midfielder Declan Rice, who assisted two goals in the opening period, thumped his team's sixth on a day of abject humiliation for the hosts. It…