Chelsea and Arsenal fined by FA for failing to control their players in London derby at Stamford Bridge in September

• Chelsea and Arsenal fined £40,000 and £30,000 by FA after derby
• FA adjudge clubs failed to control their players in ill-tempered match
• Gabriel sent off for kicking Diego Costa but had red card rescinded
• Chelsea striker Costa given retrospective three-game ban after 2-0 win 

Chelsea and Arsenal have been fined £40,000 and £30,000 by the FA for failing to control their players during their ill-tempered Premier League London derby at Stamford Bridge last month.

Both teams were involved in a fracas just before half time and Arsenal finished with nine men having had Brazilian defender Gabriel and Spanish midfielder Santi Cazorla sent off.

Gabriel was sent off for what was seen as kicking out at Chelsea striker Diego Costa and although he had his red card rescinded by the FA he still received a one-match ban and a £10,000 fine for his protests before leaving the pitch.

+6

Chelsea and Arsenal players exchange angry words as they surround referee Mike Dean in September clash

+6

Tempers flare between Chelsea striker Diego 

Costa and Arsenal defender Gabriel at Stamford 

Bridge

Cazorla was sent off for a second yellow card after a foul on Chelsea's former Arsenal midfielder Cesc Fabregas.

Costa was handed a three-match ban after the match which Chelsea won 2-0.

Chelsea, meanwhile, announced on Thursday that former Italy and AC Milan goalkeeper Marco Amelia had joined them on a free transfer.

The 33-year-old will provide experienced cover for Asmir Begovic and Thibaut Courtois for the champions who are struggling, fifth from bottom with eight points from eight games.

+6

Gabriel is held back from Diego Costa by team-

mates Laurent Koscielny, Petr Cech and Francis Coquelin

+6

Gabriel was sent off for kicking out at the striker, 

but Costa received a retrospective three-match 

ban from FA

+6

Gabriel reacted with fury to Costa's antics during 

the game and was sent off for kicking him in the first-half

Belgian international Courtois, the London club's first-choice keeper, will be sidelined until December because of a knee injury.

Amelia, who was released by Milan in the summer of 2014, has signed a contract as a free agent that will keep him at Chelsea until the end of the season.

He had a short-term deal with Serie B side Perugia at the end of last season but never made a first-team appearance.

Chelsea, who have conceded 17 league goals this season, host third from bottom Aston Villa in their next fixture on October 17.

Marco Amelia has signed for Chelsea as emergency back-up goalkeeper to Asmir Begovic