Winner 2-0 in the first leg a week ago, Chelsea confirmed their place in the semi-final of the Champions League on Tuesday against Porto.
Thomas Tuchel's men were outscored 0-1 after a stoppage-time goal scored by Taremi at Stamford Bridge.
Thanks to his two away goals, Thiago Silva's teammates continue their path in C1.
It will be against Real Madrid or Liverpool who face each other on Wednesday.
Champions League fixtures and results