Chelsea will be hoping the join fellow Premier League sides, Liverpool and Manchester City, in the quarter finals of UEFA Champions League 2017/18.
To do so, they have to see off Barcelona in the second leg of the last-16 at the Nou Camp tonight.
Barcelona holds the edge thanks to an away draw at Stamford Bridge, although the London side have a more than respectable record at the Camp Nou, where they are unbeaten in their last four visits.
In the first leg at Stamford Bridge on 20 February, Lionel Messi’s first goal against Chelsea – in his ninth fixture – cancelled out Willian’s opener and ensured Ernesto Valverde’s side returned to Spain with a 1-1 draw.
Willian twice struck the woodwork, as Chelsea made it eight games without defeat against their Catalan opponents.
This is their third round of 16 tie, with Barcelona bidding to reach the quarter-finals for a record-extending 11th year in a row.
Chelsea, meanwhile, have progressed beyond the round of 16 only once in the last five seasons
The match will be shown live on BT Sport 2 with live streaming on BTSport.com and via the BT Sport app from 7.00pm.