The Vallbanc Andorra Open began with the first round action at Principadel, where Guillermo Lahoz and Pablo Lijó took on Javier Escalante and Gerard Company. The small details decided the difference in a very even match. The first set went to Lijó and Lahoz, who needed just one break to win 6-4. In the second set, Company and Escalante went a break up but at 4-3, Lijó and Lahoz reacted by taking three straight games to win 6-4 and reach the last sixteen.
Two legends of the tour, such as Fernando Poggi and Gabriel Reca, took on the winners of the Helsinborg Challenger, Matías Marina and Javier Concepción. Poggi and Reca took an early lead with a break in the fifth game. A lead that Reca and Poggi clinged onto to win 6-3 in just an hour and six minutes. Marina and Concepcion reacted by dominating the second set clearly 6-2. They kept up that momentum in the third set, with Marina increasingly precise and Concepcion causing a lot of damage with his shots, as they won the third set 6-3 to reach the last sixteen of the Vallbanc Andorra Open.
The second match on court two was Alejandro Ruiz - Sebastián Nerone vs. Raúl Díaz - Toni Bueno. After an even start, Nerone and Ruiz broke in the eighth game to win the first set 6-4. The second set started with four consecutive breaks but when things settled down, Nerone's experience and Ruiz's perfect reading of the match helped them to break in the ninth game and win 6-4.
The second match on centre court saw Christian Fuster and Jordi Muñoz take on the number six seeds, Alejandro Galán and Juan Cruz Belluati. Despite not having been together for long, Fuster and Muñoz put up a fight against Galan and Belluati and almost took the opening set into a tiebreak. Galan and Belluati broke in the twelfth game to win 7-5 in almost 45 minutes. That advantage gave Galan and Belluati wings, and they controlled the second set much more comfortably. After almost breaking twice, they finally broke in the fifth game. They furthered their advantage on serve to lead 4-2. Muñoz and Fuster recovered in the eighth game but Galan and Belluati broke back immediately and reached the last sixteen by winning 6-4 in an hour and 22 minutes.
The last match of the morning sesison on court two brought together a pairing in red hot form, Juan Tello and Federico Chingotto, with Borja Yribarren and Juan Manuel Vázquez. The young Argentines kept up that strong form and gave their opponents no chance, as they barely made any unforced errors. 6-1 / 6-1 was the final scoreline in an hour and ten minutes.
The morning session came to an end at the Vallbanc Andorra Open 2017 with Miguel Lamperti and Juan Mieres facing Gonzalo Rubio and Javier Garrido. Rubio and Garrido were used to the conditions after having come through qualifying, but Mieres and Lamperti left no room for surprises with a break in the first set to win 6-4. In the second set, the duo from Bahia Blanca increased their domination, winning 6-2 to progress to the next round.