LaLiga Santander All looking to move in the summer

The summer transfer market brings exciting transfers and emotional farewells, but loanees - particularly those that have failed at their parent club - are often forgotten.

In this circumstance, there are seven players who have an uncertain future as pre-season begins and will have one eye outside of the club.

Thomas Vermaelen and Douglas

One of the clearest cases is at Barcelona, where the club must decide what to do with Thomas Vermaelen and Douglas.

The Blaugrana signed the pair of them to help strengthen their depth in defence, however neither has stepped up when called upon and now their exit appears to be almost guaranteed.

Vermaelen was signed in 2015 with the mission of becoming the regular centre-back partner for Gerard Pique, yet he never won the confidence of head coach Luis Enrique.

His loan spell at Roma did nothing to win over any doubters, playing for just 600 minutes across 12 matches in the entire campaign.

Injuries have been a constant burden for the Belgian in recent years, with problems occurring in the soleus muscle, his groin and even his finger; it is for this reason that he will not be in the plans of Ernesto Valverde.

The "immediate performance" that Andoni Zubizarreta spoke of at his unveiling never came.

Moreover, Douglas' first impression in European football was not a positive one.

After joining Barcelona in 2014, the right-back has found it incredibly difficult to get playing time and he, like Vermaelen, looks like he is heading out of the club.

Alvaro Negredo

Another of the big names to appear in this list is Alvaro Negredo, who just spent a season on loan at Premier League side Middlesbrough as they got relegated to the Championship.

The 31-year-old was a mainstay in the line-up under Aitor Karanka, scoring 10 goals and assisting a further four in 39 games, but he does not appear to be in the plans of new Valencia boss Marcelino.

His high salary - 6.5 million euros per year - is the main obstacle when it comes to finding a new team for the Madrid-born striker.

Luciano Vietto and Guilherme Siqueira

The season of Luciano Vietto in Seville did not go to plan, with the Argentine playing 1,890 minutes across the season but only 187 in the second half of the campaign.

He disappeared on many occasions, making it difficult to force himself into the plans of Diego Simeone.

Meanwhile, the times where Guilherme Siqueira was one of the most sought after left-backs in LaLiga are gone.

After Simeone made it clear that he was not in his plans, the 31-year-old joined Valencia on loan and played just 632 minutes in 11 games.

Similarly to Negredo, his high salary means that there will be little interest in his services; however the Brazilian looks set to negotiate the rescission of his contract.

Kike Sola

Another player with a lack of interest is Kike Sola, who was originally signed by Athletic Club to take some of the goalscoring pressure off of Aritz Aduriz back in 2013.

Since making the move to the club, and at his subsequent loan spells at Middlesbrough, Getafe and Numancia, Sola has scored just one goal - in a 5-1 win for Athletic away at Osasuna in January 2014.

With Aduriz and Inaki Williams the clear attacking options for Jose Angel Ziganda, there appears to be no place for him at the Estadio San Mames.

Sergio Araujo

Finally, one of the most talked about cases is that of Sergio Araujo.

After reports that he had been charged with drink-driving, less than 10 weeks after being sentenced to nine months in prison for refusing to undergo a breathalyser test, the talented striker left Las Palmas to join AEK Athens.

In Greece, he showed his best form by scoring 11 goals and assisting a further seven in 21 games.

Despite this, it is unclear if the Canary Island side want to keep him or not.

Two discarded loanees who gave Real Madrid their 26th LaLiga title

Ivan Zamorano and Jose Emilio Amavisca, who were non-important players at the start of the 1994/95 season, ended up being fundamental for Real as they claimed their 26th LaLiga title.

The Chilean striker not only played every match that season, but he was also the top goalscorer with 28 goals. The midfielder, for his part, scored three goals in 25 games.