Can Atletico overcome their deficit?

Chelsea will look to book a spot in the Champions League quarter-finals as they take on Atletico Madrid at Stamford Bridge tonight with an away goal in their kitty.
Chelsea are yet to be beaten under new manager Thomas Tuchel. They have won eight and drawn four of their 12 games played. And as if that wasn't impressive enough, the Blues have conceded just twice in that time.
Though they haven't exactly been the most enterprising side in the final third, the Blues have shored up their defense and all they might need to do on Wednesday is dig their heels in and defend out of their skin. Atletico have it all to do at Stamford Bridge, but on a run of two wins in seven, form is not on their side. They have, though, won four of their last six away matches, which is a boost as they look to overturn the one-goal deficit.
Atletico will have to show considerably more going forward in this game otherwise their European campaign will be over. They have been slightly more convincing since the first leg, taking eight points from four league games in a run which has included some tough fixtures such as the Madrid derby and an away trip to Villarreal. Their most recent outing was a disappointing 0-0 draw at Getafe where Atleti failed to convert a series of late chances to win the game.
Atletico have happy memories of this ground having won a Champions League Semi-Final 2nd Leg here in 2014. Only Koke remains from the starting XI that night though and this is also clearly a very different Chelsea side.