David Luiz was sent off for a rash challenge on Sead Kolasinac as Chelsea and Arsenal played out a scrappy 0-0 draw at Stamford Bridge in the Premier League on Sunday.
The Brazilian was given his marching orders three minutes from time in the most notable incident from a drab encounter between two supposed title challengers.
Chelsea's chances were more numerous, but Arsenal defended well throughout in a very disciplined display from the visitors.
The Gunners had the ball in the net 14 minutes from time, but Shkodran Mustafi was correctly adjudged to have been offside when he headed home.