Barcelona youngster Gerard Deulofeu enjoyed a breakout season after joining Everton on loan last summer. The 20-year-old, who has long been tipped for success at Barca, thrived amongst the physicality of the Premier League, complimenting Roberto Martínez's side with a touch of flair and finesse.
He returns to Barcelona a more rounded player, and finally looks set to break into the first-team squad on a regular basis having threatened to do so ever since starring for the B side. A permanent move into the Spanish national team doesn't look far off either, after Vincente del Bosque handed him his debut against Bolivia prior to the World Cup.
Rafinha is another Barcelona youngster that improved markedly after a season of competitive football in La Liga under the stewardship of Luís Enrique at Celta Vigo. However, loan moves aren't always a positive step for youngsters.
Barcelona have to be sure that their player is going to feature regularly and gather experiences that will aid their development as a Barcelona player. Bojan is a prime example of a player who has stagnated at several clubs and now looks set to leave the Camp Nou.
With that in mind, we take a look at five youngsters who would benefit from going out on loan next season.
Jean Marie Dongou (19, striker)
Comparisons with Samuel Eto'o were inevitable, given that both Dongou and Eto'o were born in Douala and each play up-front. At the age of 19, Eto'o took the decision to leave Real Madrid, where he wasn't getting any game time, and join Mallorca.
Dongou would benefit from a similar move, although Barcelona, all too aware of his talent, aren't likely to make the same mistake as Madrid and allow him to depart on a permanent basis.
Aston Villa were linked with a loan move for the youngster in January, however it never went through. Although he is only 5ft 8 inches tall, Dongou is stocky and powerful, with exceptional pace. He is direct, but still raw, which could explain why he hasn't got more of a look in at senior level.
However, he has made both his La Liga debut and his Champions League debut, so the Barça hierarchy clearly rate him highly. With Luis Suarez joining the Blaugrana, next season is the perfect time for Dongou to leave on loan and test himself at a higher level.
Adama Traoré (18, winger)
At 18, Traoré has already reached the level where he needs to be playing on a higher stage than Barcelona B. He made his La Liga debut in November aged 17 and has also appeared in the Champions League.
Comfortable with both feet, intelligent and above all else searingly quick, Traoré is a full-back's nightmare, but with Neymar, Pedro and Deulofeu blocking his route to the first-team, Barcelona should look to continue his development elsewhere. Stoke City and Everton are reportedly in the running for a loan move, although Barcelona are keen to fast-track the winger into the first-team.
Álex Grimaldo (18, left-back)
Barcelona are well stocked at left-back, with Jordi Alba and Adriano competing for a place in the first-team, but if this changes Spanish under-21 international Grimaldo is next in line.
After starting in the Barcelona B team at the age of 15, it was clear Grimaldo was destined for the top and with the former Valencia youngster already playing for the under-21 side, his potential hasn't dropped with age.
A torn anterior cruciate ligament in February 2013 threatened to de-rail his rise to the top, but he made a return last season and signed a new contract in January. He is slight in figure, but confident in possession, as we have come to expect of La Masia graduates. A loan move to Rayo Vallecano would be perfect, given their preference for possession-based football.
Sergi Samper (19, defensive-midfielder)
It is easy to forget Samper is only 19, given the hype that has surrounded him ever since he shone in the NextGen competition. Samper featured 40 times for the Barcelona B side last season, but is yet to make an appearance for the senior team.
Born in Barcelona, Samper has all the right attributes to become a local legend at the club, combining precise passing with intelligent positioning in defence. He is a dominating defensive midfielder in the same mould as Sergio Busquets.
With Busquets, Javier Mascherano, Ivan Rakitic and Alex Song all capable of playing in a defensive midfield role, Samper needs to go out on loan next season in order to gain first-team experience.
As of yet no one has been linked with a move, with Barcelona understandably anxious to make sure Samper is playing the right brand of football in preparation for future senior football at the Camp Nou. Saúl Ñíguez came on leaps and bounds last season at Rayo Vallecano, so a similar move for Samper would be ideal.
Munir El Haddadi (18, striker)
The jewell in the crown of Barcelona's esteemed youth academy is El Haddadi. Hailing from a small town near Madrid, El Haddadi is of Moroccan descent. Although he has been described as "the next Cesc Fabregas", the 18-year-old is more of a striker than a midfielder, finishing as top scorer in last season's Uefa Under-19 tournament, with eleven goals in ten matches, including a strike from the half-way line as Barça beat Benfica in the final.
His single-minded approach can garner criticism for bordering on selfishness, with his first instinct always to shoot, rather than look for a team-mate, but this will be ironed out as he learns his trade.
A move to the Bundesliga, where young talents are thrust straight into the first-team picture, or to the Eredivisie would best suit his game. Teams can forget about taking El Haddadi on a permanent basis, however, with his contract running to 2017 and a minimum release clause of €35 million ready for when he makes the first-team.
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