A revolution takes place in the morning session [Vídeo]

The morning session got underway with an enthralling clash between Cristian Gutierrez - Franco Stupaczuk and Godo Diaz - Luciano Capra. The new pairing of Gutierrez and Stupaczuk, which is one of the strongest in the draw, proved that they still have a long way to go to gel their individual talent together. Meanwhile, Diaz and Capra showed their best version in their second year as a pairing to reach the last sixteen with a 6-2 / 7-5 win in just over an hour and a half.

After leaving a good impression in their tournaments on the World Padel Tour last season, Federico Chingotto and Juan Tello continue to romp on. The number one pairing from Argentina grabbed a 7-6 / 7-5 win against Ruben Rivera and Gerard Company in an exciting match decided by minor details.

The Club Central Padel staged the biggest upset of the round as Jose Rico Dasi and Juan Manuel Restivo knocked out Sebastian Nerone and Alejandro Ruiz. A difference of 70 places between them in the rankings didn't translate onto the court. Rico and Restrivo took the first set 6-4 but Nerone and Ruiz reacted in the second (6-2) before a tie break would decide the outcome in the third. Despite a strong start from the pairing coached by Rodrigo Ovide, the Valencian and the Argentine didn't throw in the towel and ended up taking the set to pull off the biggest upset and reach their first round of sixteen on the World Padel Tour.

Aday Santana and Alvaro Cepero played a feisty match against Javier Escalante and Toni Bueno. Over two hours of excitement, with ups and downs. Every time Horacio Alvarez Clementi's pupils opened up an advantage, Escalante and Bueno clawed their way back. In the end, 7-6 / 6-2 for Santana and Cepero, who once again found out how tough it is to reach the last sixteen in the best tour in the world.

A good day's play came to an end at the Central Padel Club with Alejandro Galan - Juan Cruz Belluati up against the new pairing formed by Gabriel Reca and Javier Concepcion. Galan and Belluati showed that there's a lot to come from them this season. With a fresh and fearless brand of padel, they defeated the Spaniard and the Argentine 6-4 / 6-3.

Meanwhile, the morning session at the Palacio de los Deportes de Santander came to a close with Guillermo Lahoz and Matias Marina up against youngsters Cristian German Gutierrez and Aris Patiniotis. Proving that their strong end to 2016 was no fluke, Leo Padovani's men took the first set 6-0 in 35 minutes.

In the second set, Lahoz's magic, supported by his local fans, was instrumental in achieving a break in the second game to take a 2-0 lead, before claiming the set 6-3. Lahoz had brought his wand out to play and Marina slowly but surely grew into the game. This game at the same time that the Argentine duo started to deflate, and the final set ended up 6-3 to Lahoz and Marina in an hour and 47 minutes.

The last sixteen is served and the four best pairings in the world will enter the scene tomorrow.