Arsenal got their third Premier league win in a row at Emirates Stadium over West Brom, Alexandre Lacazette scored twice to earn Arsenal the victory.
West Brom claimed they should have had a penalty when Shkodran Mustafi brought down Jay Rodriguez with a sliding challenge – but no foul was given by referee Bobby Madley.
Some minutes later, France International striker Alexandre Lacazette headed into an open net in the 20th minute after West Brom goalkeeper Ben Foster tipped Alexis Sanchez’s free-kick onto the crossbar.
After the break, Arsenal were awarded a penalty when Allan Nyom barged over Aaron Ramsey close to the byeline..
Lacazette stepped up and calmly slotted into the bottom right corner – his fourth goal since his club record £46.5m summer move from Lyon.
Victory for the Gunners lifts them to seventh in the table, one point behind fourth-placed Tottenham and six behind leaders Manchester City.
On the night West Brom midfielder Gareth Barry broke the Premier League appearance record ever, he played his 633rd Premier League game, taking him past former Manchester United winger Ryan Giggs’ record.