Mr Mamdani is a life-long Arsenal fan, who started supporting the club at age 10.
Semenyo said, “First half we played really well. The mentality was to do the same again.”
The Gunners broke through West Ham defence, netting four of their six goals within 15 minutes.
With Saturday’s win, Arsenal displaced City from the top spot, garnering 30 points in 13 games this season.
Arsenal extended their perfect start this season with a crucial win at the Emirates Stadium, snatching a first win against City since 2015.
Mikel Arteta’s boys outplayed Villa in the second half to secure a dramatic win.
Impressive Arsenal beat London rival Tottenham on Sunday in the English Premier League, staying atop EPL log with eight points lead margin ahead second-place Manchester City.
Notwithstanding City’s 75 per cent ball possession and 16 shots on target against Everton’s 25 per cent and two shots on target, the match ended 1-1.
Kaoru Mitoma and Tariq Lamptey were both on target in the second half as Arsenal were knocked out of the English League Cup in the third round.
Arsenal hammered Nottingham Forest 5-0 to displace Manchester City as league leader.
