Bundesliga: Hamburg 1-2 Bayern Munich
Bayern have 49 points from 18 games. Dortmund, in second place on 38, travel to Borussia Mönchengladbach on Saturday.
After an encouraging start from the hard-tackling home side, Lewandowski opened the scoring with a penalty in the 37th minute after goalkeeper Rene Adler brought down Thomas Mueller just inside the area.
The champions made a sluggish start before the Poland forward put them in front with a 37th-minute penalty. Hamburg remained disciplined at the back and got their reward eight minutes into the second half when Xabi Alonso put through his own net.
Lewandowski restored Bayern’s lead in the 61st minute, deflecting a Thomas Müller shot and wrong-footing René Adler to take his Bundesliga goal tally for the season to 17, one behind
Borussia Dortmund’s Pierre-Emerick Aubameyang.
Guardiola, who leaves at the end of the season and has said he will be joining a Premier League club, is chasing his third straight domestic title while the Bavarians are on track for a
record fourth consecutive Bundesliga crown.
Hamburg coach Bruno Labbadia, was furious that his team was left empty-handed despite limiting the visitors’ chances.
“It would make you sick from our point of view. We hardly allowed any chances. It’s really annoying for us,” said Labbadia, whose side has now gone 15 competitive games without a win over Bayern.
Bayern looked rusty after the 33-day break yesterday.
The visitors had to cope without the injured Mario Goetze, Franck Ribery, Medhi Benatia, Rafinha and Juan Bernat. Arjen Robben made a late substitute appearance, while defender Jerome Boateng went off with a groin injury in the 56th.
Bayern said Boateng would undergo an examination back in Munich to determine the severity of the injury.
“We could have played a little better but I’m satisfied,” Mueller said. “We knew we weren’t at our best level but we knew we were at a level where we could compete and win the game. We’ll improve from game to game.”