Real Madrid's primary target to replace Karim Benzema is Harry Kane, but it is more than likely that the club's efforts to convince Tottenham's president, Daniel Levy, will not be enough, especially if the club are still hoping that the deal will not exceed 80 million euros.

Real Madrid are aware that the striker has one year left on his contract and is already 29 years old, both factors which, in their eyes, limit his market value.

However, it isn't easy to leave Tottenham and we'll have to see how much Kane tries to force a way out.

It's not so long since the signings of two other Tottenham players, with Real Madrid signing Luka Modric in 2012 and Gareth Bale in 2013, and they both showed how you can great players out of the North London club.

In both cases, the position of strength of the two players ended up being the key to Tottenham accepting an offer from the club.

Modric left for Croatia

Jose Mourinho asked Real Madrid to do everything they could to strengthen their midfield with Modric.

Levy did not accept the offer, but the player had an agreement with Florentino Perez and decided not to travel to Los Angeles for pre-season with the rest of the Spurs squad at the end of July.

The club announced that it was fining the Croatian after he failed to train for two days and did not show up at the airport in London.

Modric took refuge in Zadar to await news and wait for negotiations to progress.

However, a few days later and after speaking to Andres Villas-Boas, he returned to London to train on his own, with the team on tour, although he had threatened to train on his own in his home country.

Modric was due to join his national team in the second week of August and there was still no agreement.

It took until August 27 for the two clubs to reach an agreement for 30m euros plus bonus payments.

Bale also failed to show up

Bale failed to turn up for pre-season training with Tottenham in 2013, citing an alleged injury, but his aim was to force his way out of the club and a move to Real Madrid.

He was also called up to the Wales squad for two 2014 World Cup qualifiers, which he did play.

Bale eventually signed for Real Madrid on September 1 that year, hours before the deadline.

It was, therefore, a very long saga, and one which frustrated Tottenham's chairman.

In August, Levy threatened the Welshman with a year on the bench despite the Welsh international calling on his chairman to keep his word that he would let him leave if the team failed to qualify for the Champions League, which was the case.

The sticking point between Los Blancos and Spurs was the transfer fee. Levy was asking for 145m euros. In the end, he cost 101m euros, then the most expensive transfer in the club's history.

Kane knows, then, that it is possible to move from London to Madrid, but that it won't be easy and that it could be a long process.