Arsenal have a huge opportunity to land decisive blow in Premier League title race

Arsenal are bidding to record back-to-back Premier League wins when they host Sunderland this afternoon - (Arsenal FC via Getty Images)

When Arsenal have found a door ajar in front of them, they have not always found it easy to walk through.

Manchester City's draw with Brighton last month presented Arsenal with the opportunity to move eight points clear at the top of the Premier League the next day, but Mikel Arteta's side played out a dull goalless draw with Liverpool.