Striker Harry Kane scored twice as Bundesliga leaders Bayern Munich eased past visitors Union Berlin 3-0 on Saturday to provisionally open up a three-point gap at the top.

Bayern, who host Benfica in the Champions League on Wednesday, opened their account with a 15th-minute penalty by England captain Kane before Kingsley Coman curled a shot past keeper Frederik Ronnow to make it 2-0 two minutes before the break.

Union were constantly on the back foot, with the hosts having close to 80% possession at times, and could do nothing to stop Kane from stabbing in his second goal of the afternoon from close range six minutes after the restart.

Kane, who also scored a hat trick against VfB Stuttgart two weeks ago in the Bundesliga, has 11 league goals this season to top the scorers' list.

Undefeated in the league and eager to reclaim domestic dominance after last season's double by Bayer Leverkusen, Bayern have scored 32 goals and conceded seven in nine league games.

They are top on 23 points, three ahead of second-placed RB Leipzig, who take on Borussia Dortmund on Saturday.

Eintracht Frankfurt moved up to third place on 17 points following their 7-2 demolition of VfL Bochum.