All Alexis Sanchez as five-star Arsenal rout West Ham – in pictures

West Ham United manager Slaven Bilic, right, and Arsenal manager Arsene Wenger walk in the bubbles before the match. Justin Tallis / AFP

West Ham United’s Manuel Lanzini, left, vies with Arsenal’s Laurent Koscielny. Justin Tallis / AFP

Arsenal’s Mesut Ozil, left, scores the opening goal past West Ham United goalkeeper Darren Randolph. Justin Tallis / AFP

Arsenal’s Mesut Ozil celebrates scoring their first goal. John Sibley / Action Images / Reuters

Arsenal’s Alexis Sanchez shoots to score their second goal. Justin Tallis / AFP

Arsenal’s Alexis Sanchez celebrates after scoring their second goal. Justin Tallis / AFP

Arsenal’s Alexis Sanchez, left, shoots to score their third goal. Justin Tallis / AFP

Arsenal’s Alexis Sanchez celebrates after scoring their third. Justin Tallis / AFP

Arsenal’s Alex Oxlade-Chamberlain celebrates after scoring the fourth goal. Hannah McKay / EPA

Arsenal’s Alexis Sanchez, left, scores his third goal, the team’s fifth. Justin Tallis / AFP

The three goal-scorers, Arsenal’s Alex Oxlade-Chamberlain, left, Alexis Sanchez, centre, and Mesut Ozil, right, celebrate Sanchez’s hat-trick. Justin Tallis / AFP

Images from Arsenal's 5-1 win over West Ham United in the Premier League on Saturday night, as Alexis Sanchez notched a hat-trick.

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