Mauricio Pochettino delighted to qualify as Group H winners as manager admits initial concerns over Tottenham's Champions League draw

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Mauricio Pochettino admits he feared the worst when Tottenham's Champions League draw came out but his side will go through top of the group after they beat Borussia Dortmund.

Son Heung-min scored the winner at the Westfalenstadion, and his eighth goal in 10 games against the German outfit, as Spurs came from behind to seal a 2-1 victory.

Pierre-Emerick Aubameyang had given Dortmund the lead but Harry Kane equalised early in the second half before Son capitalised on some brilliant Dele Alli trickery 14 minutes from time.

Mauricio Pochettino's side have 13 points from their five Champions League group matches

The result means Tottenham head into the last 16 as winners of Group H, ahead of European champions Real Madrid, with one match to spare. They finish at home to Apoel Nicosia next month.

It is a far cry from this time last year, when Spurs' hopes of progress had already been ended in a kinder group that included Monaco, Leverkusen and CSKA Moscow.

'The season before, we were watching the draw and we thought: "Oh Monaco, Leverkusen and CSKA" and we thought we had a chance to go to the next stage,' Pochettino said.

'Then this draw we looked between us and thought: "OK we are going to compete and we say nothing" - and look now we are first, top of the table.

Harry Kane and Son Heung-min scored Tottenham's goals as they came from behind to win 2-1

'It was difficult because Real Madrid and Borussia Dortmund and APOEL are always difficult but we try to enjoy and be competitive and try to win, that was the idea in every single game.

'I am happy for the result, to be top of the table, first, but we're looking forward to playing the next game.'

Pochettino could have opted to rest players given even a win over Apoel next month would have secured first place.

But he started Kane and Alli, both recently injured, as well as Danny Rose, who was left out of the squad completely for Saturday's defeat to Arsenal.

Rose certainly justified his place with a dynamic display down the left while Alli set up Son's winner, having danced between two Dortmund defenders out wide and then provided the cut-back.

Pochettino said he was 'so happy' about Dele Alli's performance against Borussia Dortmund

'I am so happy about him, of course,' Pochettino said about Alli.

'For me the position he played today he can play easy because of the characteristics of him. He can play behind striker or like a number eight because he has the quality and talent and capacity to cope with different positions, he has that.

'But I'm not only proud of him but the whole team. Danny Rose was fantastic too. We must recognise that. In the second half, and the whole game, after 10 months injury it's difficult.

'The performance was great. I think the whole team was very good, fantastic performance.'

Pochettino also praised Danny Rose after the left back returned following 10 months out

Dortmund, meanwhile, are now playing for third place and a spot in the Europa League as defeat piled more pressure on their coach Peter Bosz.

Bosz has seen his side win just once in six matches, with Saturday's derby game at home to Schalke taking on added significance.

'The trust is lacking, which makes sense if you have not won for so long', Bosz said.

'We have to win the derby on Saturday, only the win counts. I think this match cannot come at a better time.'