Welcome to LIVE coverage of the FA Cup fifth round tie between Leyton Orient and Arsenal at the Matchroom Stadium!

There's the final whistle!! Leyton Orient have defied the odds to earn a draw against Arsenal! Fantastic! They'll do it again at the Emirates Stadium...

Anywhere will do for Orient, who scramble the ball clear... Chorley heads clear an Arshavin cross!

Into the final minute of stoppage time, and Arsenal lump it forward...

Ninety seconds to go, and Orient are on the verge of a lucrative replay. Mind you, if they win they'll be off to Old Trafford...

Arsenal come again with Sagna on the right... then Arshavin whose shot is deflected into the arms of Jamie Jones.

Well, Arsenal look as though they will be made to pay for failing to put this game away. They were so dominant.

FOUR MINUTES of stoppage time to be played.

Now Arsenal pur forward, and Song's silky skills are met with a booming clearance.

Fantastic goal from Tehoue - a defensive horror show from Arsenal, but Orient won't care. Sensational.

GOAL!!! ORIENT ARE LEVEL!! AMAZING!! It's the sub Jonathan Tehoue!! He beats Miquel and Gibbs and lashes a low shot past Almunia!!

Arshavin races through the right channel and has no support, so he goes for goal with a low effort that glances the foot of the post and goes wide!

Arsenal continue to play the ball around with ease. Romance of the cup be damned - it's hard to get the ball off a team with their level of technical ability.

Orient: Here's the change, as M'Poku replaces Revell.

The replay shows Revell's shot hit Squillaci full in the face - no handball. And the shot was going over anyway, for what it's worth.

Tehoue has space and pulls the ball across for REVELL!! SQUILLACI BLOCKS!! And Orient want a penalty!! Nothing doing!

Whing slides through the back of Chamakh, a bad challenge really. Yellow card.

Orient are preparing to bring on their final substitute, Paul-Jose M'Poku, on loan from Tottenham.

Tehoue wriggles past two challenges but cannot get into shooting position. It's just not happening for them.

Tehoue looks a lively player, but he just strays a yard offside this time.

Song plays it in to the feet of Arshavin inside the box, but Jimmy Smith tracks the Russian, whose hurried shot is high and wide.