Gunners fire four past Wanderers
Arsenal kept up the pressure on Barclays Premier League leaders Chelsea with a 4-1 victory over 10-man Bolton at Emirates Stadium.
Laurent Koscielny bundled home his first Arsenal goal on 24 minutes, before his poor back header allowed Bolton to equalise just before half-time through Johan Elmander.
Marouane Chamakh headed the hosts back in front before Gary Cahill was sent off for a tackle from behind on the Moroccan. Alex Song netted Arsenal's 1,000th Premier League goal under manager Arsene Wenger and substitute Carlos Vela stroked in number four with seven minutes left.
The Gunners were ahead after 24 minutes. Jack Wilshere's chip found Cesc Fabregas at the far post. His cutback was bundled in by Koscielny following a rebound from Adam Bogdan.
Andrey Arshavin clipped the side-netting before he was denied on the breakaway, Gretar Steinsson putting the Russian off-balance.
Bolton snatched an equaliser just before half-time following a mix-up in the Arsenal defence. Koscielny's backward header left Manuel Almunia exposed as Lee Chung-yong darted on to the ball.
The Korean rounded the goalkeeper and chipped back across goal, where Elmander headed in.
Morocco striker Chamakh headed in Fabregas' cross at the far post to restore Arsenal's lead after 58 minutes before Koscielny and Sean Davis both needed treatment after a nasty clash of heads on the edge of the Arsenal penalty area.
Referee Stuart Attwell then showed Cahill a straight red after the England international's challenge on Chamakh.
Song made it 3-1 when he chipped the goalkeeper, before substitute Vela scored number four with seven minutes left - and Emmanuel Eboue was denied what looked a penalty when tripped by Fabrice Muamba.