Tottenham Hotspur have had their fair share of transfer flops and successes over the years as they have picked up bargains, like Heung-Min Son, and signed flops, like Roberto Soldado, in previous windows.

Transfers are not always perfect and you cannot predict what will happen over the course of a number of years after signing a player, whether that is their form, how the manager uses them, or a number of other factors involved.

One player who the club did have a nightmare with was central defender Sebastian Bassong, as his value plummeted during his time in north London.

Tottenham signed the centre-back from Newcastle United in the summer of 2009 for a fee in the region of £8m and then-manager Harry Redknapp said that he was a player with a "good future".

He enjoyed a fantastic debut season with Spurs as he played 38 games in all competitions, including 28 in the Premier League, under Redknapp.

However, he was then an unused substitute in 30 matches in the following campaign and this did not go down well with the ex-Magpies gem.

The central defender was left confused by his lack of action in the team, saying:

"I know football's rules and I know that it's up to the manager. If he likes someone else more than me, I totally get it. But the fact is that after last season, and what we achieved together, I couldn't even imagine that I would be in this situation.

"I haven't made some huge mistake on the pitch or anything. It's just happened. For a bit, I felt lost because I haven't faced this situation before in my career. I feel that I have gone backwards, like I have gone from heaven to hell."

The enforcer went on to say that his value, in the market, had gone down because he had not been playing, when speaking about Daniel Levy wanting as much of the £8m back as possible.

That was not helped by him playing just five Premier League matches in the first half of the 2011/12 campaign before heading out on loan to Wolves and playing nine times.

This led to the defender eventually being sold to Norwich City for a reported fee of £3m in 2012. This meant that his value plummeted by around 63% from the initial fee they paid Newcastle to sign him.

Based on that, it's evident to see why Spurs had such a nightmare with the defender as their handling of his situation led to a £5m loss.