Defender Branislav Ivanovic celebrated his 34th birthday with the opening goal as Zenit knocked Celtic out of Europe.
Branislav Ivanovic was the key as Zenit overturned a first-leg deficit against Celtic for a 3-0 victory that sent them into the last 16 of the Europa League.
Having missed the 1-0 defeat in Scotland a week ago, birthday boy Ivanovic proved the unlikely inspiration for Zenit's impressive turnaround at a raucous Krestovsky Stadium.
The veteran defender celebrated turning 34 by scoring the opening goal in the seventh minute, powering in a header from a corner to make it 1-1 on aggregate, before setting up Zenit's third in the second half.