It has been said many times that the priorities when signing new players this summer are two: a center-back alternative to Piqué and Mascherano and striker to replace the trident when necessary. The right back is covered with 2 players as a first option: Dani Alves and Aleix Vidal, plus Sergi Roberto.
However, Dani Alves has an astronomical offer coming from Guangzhou Evergrande, a club from China. If the Brazilian accepted, the gap should be filled. According to Mundo Deportivo, the preferred candidate for this place would be Héctor Bellerín.
21-year-old player, he has become starter in the right side of Arsenal just in his 2nd season. With past in Barça, Bellerín left the club five years ago once converted from winger to full-back. The interest of the Catalan club is not alone, as there are several clubs interested in the player: Bayern, Manchester City, Manchester United, Chelsea and PSG, according to Mundo Deportivo.
Bellerín is not the only probable candidate to strengthen the right-back position. Barça's technical secretary might be interested in Joao Cancelo (Valencia) and Jonny (Celta) from La Liga; Alessandro Florenz (Roma), Mattia di Sciglio (Milan) and Elseid Hysaj (Naples) from Italy league; Wendell (Bayer Leverkusen) from the German league and Almany Touré (Monaco) and Raphael Guerreiro (Lorient) from the French one.