IT was a huge day of ATP Tour action across the globe, as we look at how the matches went down in Montpellier, Singapore and Cordoba with the quarter finals completed in two tournaments, and the Round of 16 wrapped up in the latter one.
Looking at Montpellier, the top two seeds remain on a crash course to meet in the Open Sud de France final after winning their quarter finals in style to now take on unseeded opponents in the semis. In a tournament where nothing has been as expected, number one seed Roberto Bautista Agut, and number two seed David Goffin both provided some stability with comfortable victories.
Bautista Agut won 6-3 6-3 over talented sixth seed Frenchman Ugo Humbert, while Goffin dispensed of seventh seed Italian Lorenzo Sonego, 6-4 6-4. Bautista Agut needed 75 minutes to knock off Humbert, dominating off his consistent serve, only dropping three points off his first serve, and 11 in total, while Humbert could not get his usual power off his serve going, matching the more steady Bautista Agut with three aces each. Goffin also only served the three aces, defeating Sonego in 86 minutes, breaking three times to one which was enough to salute in straight sets fashion.
In the battle of the unseeded players, Belarusian Egor Gerasimov came back from a set deficit to post a win over Alejandro Davidovich Fokina, 4-6 6-4 7-5. The match lasted two hours and 29 minutes, with Gerasimov producing 16 aces and breaking five times to four in an impressive performance against the rising Spaniard. Meanwhile German qualifier Peter Gojowczyk – who defeated highly rated compatriot Jan-Lennard Struff in the first round – continued his run with a 6-4 6-1 victory over Dennis Novak. The match lasted 83 minutes, with Gojowczyk saving both break points he faced, whilst capitalising on four of 13 against the Austrian. His serving efficiency was poor at 45 per cent, but he made the most of it when it did go in, only dropping three points off his first serve.
Gerasimov takes on Goffin in the first semi-final on Court Patrice Dominguez today, while Bautista Agut faces Gojowczyk in the other semi-final.
OPEN SUD DE FRANCE QUARTER FINALS:
 Roberto Bautista Agut (ESP) defeated  Ugo Humbert (FRA) 6-3 6-3
 David Goffin (BEL) defeated  Lorenzo Sonego (ITA) 6-4 6-4
Egor Gerasimov (BLR) defeated Alejandro Davidovich Fokina (ESP) 4-6 6-4 7-5
[Q] Peter Gojowczyk (GER) defeated Dennis Novak (AUT) 6-4 6-1
In Singapore, top seed Adrian Mannarino was the major casualty of an otherwise as expected day, with two other top four seeds, and the higher ranked Australian in an all-Australian battle, moving through to the semi-finals. Mannarino suffered a straight sets defeat against tricky Macedonian Radu Albot who has found form of late, getting up 6-3 6-4 in an impressive performance. Albot served five aces without a double-fault and broke three times to one throughout the 95-minute match, only dropping four points on his second serve to be able to recover well.
Following him into the final four were third seed Marin Cilic, fourth seed Alexander Bublik, and Australian Alexei Popyrin. Cilic was able to fight back from a disappointing second set to post a three-set victory over Soonwoo Kwon in the match of the day. The match lasted exactly two hours, and with 18 aces and an 80 per cent first serve success rate, the Chilean veteran proved too powerful for the Korean, breaking a fourth time in the deciding set.
Bublik took care of Japan’s Yoshihito Nishioka in straight sets, 6-3 6-2 in 73 minutes and serving 15 aces to zero. He faced nine break points and remarkably saved them all, whilst making the most of his opportunities with three breaks from six chances. Meanwhile, Popyrin defeated compatriot and wildcard Matthew Ebden, 6-4 7-6 in one hour and 25 minutes. The winner put up 14 aces to three and broke the only opportunity created in the match, whilst controlling his serve to only lose 16 points on serve at a high 76 per cent success rate.
Cilic will now face Popyrin in the first-up semi-final today, before Albot and Bublik lock horns in the match straight after for a spot in the final.
SINGAPORE QUARTER FINALS:
 Radu Albot (MCE) defeated  Adrian Mannarino (FRA) 6-3 6-4
 Marin Cilic (CRO) defeated  Soonwoo Kwon (KOR) 6-2 2-6 7-5
 Alexander Bublik (KAZ)  Yoshihito Nishioka (JPN) 6-3 6-2
Alexei Popyrin (AUS) defeated [WC] Matthew Ebden (AUS) 6-4 7-6
The time difference in Cordoba, Argentina means that the Round of 16 was completed overnight, with the quarter finals set to take place today. Aside from a shock loss to third seed Serbian Miomir Kecmanovic, the results went as planned, with three top eight seeds all knocking out their unseeded opponents. It also meant the home nation has four representatives in the quarter finals, with the potential to be an all-Argentinian final four if they can somehow get up.
Argentinian qualifier Juan Manuel Cerundolo caused the one big upset of the day, toppling Kecmanovic in a come-from-behind win. After dropping the first set in a tiebreaker, Cerundolo held firm in the second set, and ran away with it in the third to secure a 6-7 7-5 6-2 victory. The match lasted two hours and 19 minutes, with Cerundolo breaking six times to three, and winning 64 per cent of both his first and second serve points, while Kecmanovic only managed 44 per cent success off his second serve and his inconsistent form of late continued.
The other three-setter was fifth seed Albert Ramos-Vinolas who survived a scare from another Argentinian qualifier in Tomas Martin Etcheverry, 2-6 7-6 7-5. The match went for a whopping two hours and 49 minutes before Ramos-Vinolas could finally shake off his lower ranked opponent, needing to break a third time during the win. Both players served five aces, but it was Etcheverry who won more overall points, being better on serve and return, but Ramos-Vinolas just found a way to win.
The other two results were fairly straightforward with top seed Diego Schwartzman winning 6-2 6-2 over Italian clay courter Marco Cecchinato, while seventh seed Brazilian Thiago Monteiro accounted for unseeded Spaniard Roberto Carballes Baena, 6-3 6-4. Looking to the quarter finals today, Monteiro takes on Cerundolo and Schwartzman faces Ramos-Vinolas, while in the other ones, Federico Coria matches up against second seed Benoit Paire, while Argentinian qualifier Facundo Bagnis meets Slovakian Jozef Kovalik.
CORDOBA ROUND OF 16:
 Diego Schwartzman (ARG) defeated Marco Cecchinato (ITA) 6-2 6-2
 Albert Ramos-Vinolas (ESP) defeated [Q] Tomas Martin Etcheverry (ARG) 2-6 7-6 7-5
 Thiago Monteiro (BRA) defeated Roberto Carballes Baena (ESP) 6-3 6-4
[Q] Juan Manuel Cerundolo (ARG) defeated  Miomir Kecmanovic (SRB) 6-7 7-5 6-2
Picture credit: ATP Tour