Harry Kane scored twice in three second-half minutes as Bayern Munich saw off Union Saint-Gilloise 2-0 on Wednesday to reach the last 16 of the Champions League.

Bayern joined Arsenal in sealing a top-eight finish in the 36-team table with a game to spare, avoiding a potential two-legged knockout play-off round.

Kane headed in from a corner before winning and converting a penalty to put the hosts firmly in control.

The England captain had a chance for a hat-trick but missed a late spot-kick, after Bayern centre-back Kim Min-jae had been dismissed for a second yellow card.

Bayern's Champions League defeat at Arsenal remains their only loss in all competitions this season, in which they have also already opened up an 11-point lead in the Bundesliga.

Kane's second goal was his 34th of the campaign, bringing Bayern's total tally to 103 strikes from 29 games.

Bayern were sluggish in the opening half, perhaps unsettled by the absence of their 9,300-strong ultra contingent, with the lower stand closed due to a UEFA sanction for setting off pyrotechnics.

The best chance of the opening half fell to Belgian champions Union SG.

With half an hour played, an unmarked Promise David got away from the Bayern defence and had just Manuel Neuer to beat, but headed his effort directly at the goalkeeper.

Bayern needed a set-piece to break the deadlock with 52 minutes gone.

Michael Olise lofted the ball into the six-yard area and Kane found space at the near post to head his side in front.

One minute later, Kane was felled by Union 'keeper Kjell Scherpen and stepped up to double Bayern's lead.

Kim, handed a rare start with Dayot Upamecano out sick, was sent off in the 63rd minute, picking up a second yellow for yanking Raul Florucz's arm as the winger went on the attack.

But the red card did not disrupt Bayern's flow.

Kane uncharacteristically blasted a penalty against the bar with 10 minutes left, while Olise chipped another opportunity over with just Scherpen to beat.