Joshua Zirkzee marked his first Bundesliga appearance with a late goal while Serge Gnabry also scored in injury time as Bayern Munich stole a scarcely deserved 3-1 win at Freiburg.

Robert Lewandowski, fresh from a brace in a 6-1 hammering of Werder Bremen, netted a 19th league goal of the campaign to put Bayern ahead at Schwarzwald-Stadion.

Freiburg, having kept it to one during that early storm, levelled through Vincenzo Grifo's excellent equaliser, and the enterprising hosts had plenty of chances to earn the three points

But teenage substitute Zirkzee kept a cool head in the 91st minute to steer past Mark Flekken, and Gnabry added undeserved gloss as Bayern moved third and four points off the top of the Bundesliga.