Robert Lewandowski scored twice as Borussia Dortmund took a big step toward the Champions League quarter-finals with a 4-2 victory at Zenit St Petersburg.
Dortmund made a blistering start with Henrikh Mkhitaryan scoring in the fourth minute and Marco Reus doubling the lead a minute later.
Zenit, who hadn't played a competitive game since December 11, looked rusty, but pulled one back through Oleg Shatov in the 57th minute, but Lewandowski struck again four minutes later, after playing a one-two with Poland team-mate Lukasz Piszczek.
Piszczek then conceded a penalty and Hulk scored emphatically from the spot in the 69th minute.
However, Lewandowski soon responded by scoring his side's fourth away goal to leave Dortmund firmly in control before the second leg of the round-of-16 tie on March 19.
"We were close to optimal," said Dortmund coach Jurgen Klopp. "It was a great game, no question."