Jose Mourinho and Jonas ­Olsson fight in Stamford Bridge tunnel

West Bromwich Albion’s Swedish defender Jonas Olsson (2nd R) and Chelsea’s Serbian defender Branislav Ivanovic (L) confront each other during the English Premier League football match between Chelsea and West Bromwich Albion at Stamford Bridge.

After the final whistle at Stamford Bridge, the score read 2-2 with Chelsea dropping points in a pivotal title race.

But the contest did not end there. As the players headed back through the tunnel into their respective dressing rooms, a massive bust-up broke out which involved a total of 20 players.

West Bromwich Albion’s Jonas ­Olsson and Chelsea manager Jose Mourinho came face to face after the Sweden international told Mourinho to “Shut up and f*** off”. It required the intervention of teammates and club stewards to bring order to proceedings before things got out of hand. Mourinho had come out of the dressing room after hearing the commotion and called Olsson a ‘Mickey Mouse player’.

Other West Brom players like Gareth McAuley were also involved before teammates managed to separate the fighting factions and head to the dressing rooms. Liam Ridgewell and West Brom’s assistant manager Kevin Keen were also involved as they argued with the stewards.

Matters weren’t helped by the fact that West Brom were hard done by after a controversial penalty in the 94th minute allowed Chelsea to equalise and prevent the Midlands club from coming away with all three points.

However, both teams seem to have brushed it aside as Mourinho and Olsson were seen shaking hands when the West Brom squad boarded their coach.

West Brom manager Steve Clarke, who was once Mourinho’s former assistant at Chelsea, was not involved in the tunnel incident.