Tottenham boss Mauricio Pochettino is convinced there is more to come from striker Harry Kane after seeing him plunder his 30th goal of the season. Kane became the first Spurs player since Gary Lineker to reach the 30-mark with a late strike in his side's 3-1 Barclays Premier League victory at Newcastle on Sunday. However, Pochettino is convinced the 21-year-old England hitman can improve further as he continues to make his way in the game. Harry Kane calmly slots Tottenham's third goal in time added on after coming one-on-one with Krul . Kane celebrates putting the result beyond doubt as Spurs claim a 3-1 win over Newcastle . He said: 'He has big potential. He is young and this is his first full season in the first team. We need to push him to try to improve his level because he has the potential to improve. 'It's a fantastic achievement and I congratulate him. He deserves this moment because he has worked a lot. It's an historic thing. 'He's happy in the changing room and all his team-mates are happy, and I think all our supporters and the club are happy at his achievement.' If it was Kane who put the icing on the cake at St James' Park, it was Nacer Chadli and Christian Eriksen who paved the way for his late contribution as the visitors condemned Newcastle to a sixth successive league defeat. Chadli fired them in front on the half-hour and after Jack Colback had levelled 20 seconds after the restart, Eriksen scored with a free-kick which evaded all the yellow shirts in the middle and defeated keeper Tim Krul. Kane killed off any hopes of a second fightback when he rounded off a 91st-minute break to leave Pochettino delighted. Tottenham striker Kane at full stretch as he is chased down by Newcastle captain Fabricio Coloccini . Kane celebrates his goal against Newcastle as opposition goalkeeper Tim Krul looks on in despair . He said: 'We fully deserved the victory and the three points. I think our performance was better than Newcastle's and I am very pleased for our players. 'I am happy to recover this feeling after the last two games - that wasn't good and it's important to feel victory again.' It proved a difficult day for opposite number John Carver, whose side had to contend not only with Tottenham, but a boycott by some of their own fans. Kane is assessed early in the match after inadvertently being caught in the head by the arm of Vernon Anita . Carver insisted that had little impact - the official attendance at the 52,000-capacity stadium was 47,427 - but admitted the Magpies, who are currently seven points clear of the drop zone, are engaged in a survival fight. He said: 'Absolutely, we're in amongst it, there's no danger of that, because you have got sides - and I'll use Leicester as an example - who are winning games. We aren't. Jack Colback is in the right place at the right time to pounce on a loose ball in the midfield and equalise . Newcastle players join Colback as the hard-working midfielder pounces on a loose ball in the area . 'But we have got to find a way of trying to find some points and put some points on the board. We have to come up with a solution, I have to come up with a solution. 'I have to find a method of trying to play now that might not be pretty on the eye, but I need to find a way of getting some results, getting some points. People might not like what they see, but I'm going to have to do it.' Colback jumps for joy after his fourth goal of the season, all of which have been scored at home . Fans applaud Newcastle's goals while one holds up a 'Love NUFC, Not Ashley' sign during the game . Geordie Carver was installed as Alan Pardew's replacement until the end of the season in January, and has found himself in the firing line virtually ever since, although he is refusing to throw in the towel. He said: 'It's probably the most difficult situation I have ever been in. But I'm a fighter and I'm not going to shirk anything. I'll take the stick and I'll take the responsibility because that's the type of person I am. 'But I'm not going to give up on it. Yes, I'm angry and I'm annoyed, and I've got my own thoughts in my head that will stay private. But I have just got to get on with it because nobody else is going to do it.' A plane hired by the supporters of rivals Sunderland heap misery on Newcastle United . 'We don't demand a team that wins, we demand a team that tries,' reads banner outside St James' Park .
Mauricio Pochettino believes Harry Kane still has so much more to give . Kane scored against Newcastle to take his season tally to the 30-mark . He becomes first Tottenham player since Gary Lineker to reach that tally . Pochettino is convinced 21-year-old England hitman can improve further .