We have been drawn in Champions League Group E alongside Shakhtar Donetsk, Juventus and FC Nordsjælland.
It will be first meetings with Ukrainian and Danish champions Shakhtar and FC Nordsjælland for the Blues, though Italian champions Juventus were opponents in the first knockout round back in 2009.
On that occasion we were narrow winners at home before a 2-2 draw in Turin sent us through to the quarter-finals.
The competition begins in a little over two weeks, with the first matchday taking place on Tuesday 18 and Wednesday 19 September.
The remaining five fixtures will be played throughout October and November with the final game on December 4 and 5.
The final will be back at Wembley on May 25.
Finalised fixture dates to follow.
The complete draw is:
Zenit St Petersburg