By Ewan Murray Arsenal moved four points clear at the top of the Premier League table with an important 3-0 win over Bournemouth on Saturday lunchtime. Mikel Arteta’s men could have been out of sight at half-time but they did take a one-goal lead into the break after Bukayo Saka calmly converted from the penalty spot in the 45th minute. Leandro Trossard doubled Arsenal’s advantage after the break and, despite some VAR controversy, Declan Rice added a third for the Gunners in stoppage time as the hosts earned three crucial points in the title race. How the game unfoldedArsenal were in desperate…