Lucy Quinn’s contribution against Spurs was one of her biggest yet for Pompey Ladies.
Blues boss Perry Northeast praised the winger after her 80th-minute goal helped seal a crucial 3-2 win over the north London side at Furze Lane.
It was a very tough contest with Spurs determined to get revenge after losing 4-0 at home to the Blues on November 22.
The visitors took the lead in the 18th minute before Ini Umotong equalised for Pompey on 40 minutes to make it 1-1 at half-time.
Quinn then fired the Blues ahead with a superb strike on 80 minutes.
Sarah Kempson’s deflected free-kick made it 3-1, four minutes later.
Lucy is delivering fantastic results for the team at the momentPerry Northeast
Spurs got one back in injury time but Pompey held on to win the vital FA Premier League southern division clash.
Northeast said: ‘Lucy is delivering fantastic results for the team at the moment.
‘It was perhaps her most important goal for us.
‘Throughout the game our defensive-minded players had to stay strong and they did.
‘Their efforts almost won us the match – they gave us the platform, before Lucy Quinn took advantage by getting the second goal.
‘We have to give Spurs credit.
It was a fast, high-intensity game.
‘We don’t want to win games without style every week.
‘But the most important thing was to get the three points and we did that.’
Spurs became the first team to take the lead against the Blues since Charlton on Sunday, November 1.
That gave the hosts a different challenge to overcome but Northeast was pleased with the response.
He said: ‘Spurs took the game to us. They shocked us a bit with the way they started.
‘I’ve been quite a big of fan Spurs.
‘Their manager Karen Hills and their head coach Juan Carlos Amoros do a very good job.
‘Going behind has not happened to us for quite a long time so it was nice to see the squad and the team bounce back.’
Umotong put Pompey Ladies level when she fired past the Spurs keeper after beating the defence to a cross from Emma Sherwood.
Pompey Ladies upped their work-rate in the second half and Quinn fired them ahead with a brilliant finish on 80 minutes.
Kempson’s free-kick took a wicked deflection to make it 3-1 on 84 minutes.
Spurs scored direct from a corner but Pompey held strong to seal victory.
Northeast’s side are fourth in the league – nine points behind leaders Brighton with two games in hand.
They go to C&K Basildon on Sunday.
Meanwhile, the Blues will host Cardiff in the FA Cup second round on Sunday, January 10.