The kids who could play at Valencia: Kaptoum, Romera, Gumbau, Camara, Samper

The second leg of the Copa del Rey semi-final at Mestalla against Valencia has become a "strange" game for Luis Enrique, given the huge win at Camp Nou in the first leg.

Barcelona's boss will give a rest to some of his more important players and those in danger of missing the final if they were to pick up a booking. It will, though, be a good chance to give some of the younger players minutes.

Throughout this week, the first team's ranks have been boosted in training by the presence of several players from Gerard Lopez's Barça B team. 

Here are the five players Luis Enrique is thinking about using against Valencia: 

WILFRID KAPTOUM 

Born in Cameroon 19 years ago, he's the only 'son' left of those that arrived from the Samuel Eto'o Foundation. He is a creative and technically good central midfielder who has been compared to Thiago Alcantara for his elegance on the ball, although he himself prefers Andres Iniesta. 

Kaptoum has already played for the first team this season, making his debut in the Copa del Rey against Villanovense in October. Luis Enrique also counted on him against Bayer Leverkusen in the Champions League after Barça had already qualified from their group. 

DANI ROMERA 

Signed from Almeria last summer, the 20-year-old forward was not able to make his debut until January due to FIFA's registration ban.

His debut has conincided with Gerard Lopez's team's improved form. Last season he scored 15 goals for Almeria B, while he's already scored two and created two in his five games in 2016.

He is a central forward who has been playing on the left recently. Romera made history when he became the youngest player to debut for Almeria in La Liga when he appeared against Celta Vigo at the age 18 years and 94 days.

Romera has not debuted for Barça's first team. 

GERARD GUMBAU 

A 20-year-old central midfielder who came to the club from Girona ahead of the 2014-15 campaign. Luis Enrique has been a keen follower and has regularly called him in to first team training sessions and match day squads. 

This season, the Catalan has been with the first team on 16 occasions and has participated in eight games (three in La Liga, two in the Copa and three in the Champions League). 

JUAN CAMARA 

A left-winger from Jaen, 21, who can also play in midfield. He has a great left foot and adds a goal threat. In fact, he's in good form, having scored four goals in his last six games in Segunda B. 

Camara, who arrived at the club from Villarreal B, made his debut for Barça's first team in the Champions League game against Bayer Leverkusen this season. He has been in the squad on more occasions, but has not played. 

SERGI SAMPER 

The Barcelona-born youngster has long been touted as one of the most promising players at the club. A 21-year-old midfielder, he joined the club as a six-year-old and has made his way through all the age groups. 

Samper is one of the players most likely to claim a place in the first team. His talent has not gone unnoticed and he's had offers from England's Premier League. 

He's long been involved with the first team, dating back to training sessions when Pep Guardiola was the manager. He could become the complete midfielder, with his style a mix of Sergio Busquets and Xavi Hernandez. 

The Catalan eventually made his first team debut under Luis Enrique in September 2014 against Apoel in the Champions League. Since then he has played nine more times and was even involved at the Club World Cup.