Blockbuster match up 🤩 @felixtennis takes on @MattBerrettini for the last spot in the final 4... #ATPGstaad pic.twitter.com/Dz20aQOziE

Finding form 🔥 Number one seed @steftsitsipas is into the last 4 in Gstaad, defeating Fognini 6-4 6-3 #ATPGstaad pic.twitter.com/unBy0SvDG1

Semis for Struff 🤝 @Struffitennis comes through a tight battle with Etcheverry 7-5 3-6 6-2 to reach the last 4 in Gstaad #ATPGstaad pic.twitter.com/7KLmwTsVAq

SURELY not 😱 Something in the water at the @SwissOpenGstaad today as @Struffitennis hits a tweener vs Etcheverry... #ATPGstaad pic.twitter.com/8HnqD0OcUz

"That should show you how good I'm moving on the clay" 🤣 @QuentinHalys on *that* shot #ATPGstaad pic.twitter.com/Uj2CTwBR4z x.com/TennisTV/statu…

Anything you can do... @tometcheverry #ATPGstaad pic.twitter.com/xH4HcKnfE2

Halys in Wonderland 😮‍💨 Qualifier @QuentinHalys reaches his first ATP Tour semi-final of the season, defeating Heide 6-1 7-5 in Gstaad #ATPGstaad pic.twitter.com/jMt0UaNWWH

How on EARTH 🤯 From the floor @QuentinHalys hits one of the shots of the year... @SwissOpenGstaad #ATPGstaad pic.twitter.com/L5mSVuMFPS

🎾序盤苦戦も🇨🇦オジェ アリアシム8強「いつも美しいテニスとは限らない」次戦は🇮🇹ベレッティーニ🎾 news.tennis365.net/news/today/202… #テニス #tennis #オジェアリアシム #AugerAliassime #ベレッティーニ #Berrettini #ATPGstaad

Up and running 🏃‍♂️ @felixtennis claims a convincing victory over Hanfmann 7-6 6-2 to move into the last 8 in Gstaad #ATPGstaad pic.twitter.com/urmJ7OG9Sp

Through in style 💥 Former champion @MattBerrettini gets the better of Galan 6-4 6-2 in Gstaad #ATPGstaad @SwissOpenGstaad pic.twitter.com/359cS1LeJu

Heide on the slide 💥 @SwissOpenGstaad #ATPGstaad pic.twitter.com/pMc1r4MN3p

From qualies to quarters 👏 @QuentinHalys comes from a break down in the third to defeat Klein 6-3 6-7 6-4 @SwissOpenGstaad #ATPGstaad pic.twitter.com/DFhkukf1qR

Jan the man 🤝 @Struffitennis moves into the last 8 in Gstaad, outlasting Riedi 7-6 7-6 #ATPGstaad pic.twitter.com/i1d7rDP1VL

Reaction level 💯 Riedi with a ridiculous instinctive volley vs Struff @SwissOpenGstaad #ATPGstaad pic.twitter.com/qmsrHwdmfc

In it to win it 🤩 Number one seed @steftsitsipas is into the last 8 in Gstaad, defeating Medjedovic 7-6 6-3 #ATPGstaad pic.twitter.com/yBS22CRdqG

Luck or skill? 😅 @steftsitsipas #ATPGstaad pic.twitter.com/nle8ZADfpV

Last 🎱 calling @tometcheverry comes through a tight contest with van de Zandschulp to reach the quarter-finals in Gstaad #ATPGstaad pic.twitter.com/2HWNL35dZA

Comeback complete 🇮🇹 @fabiofogna saves 2 match points to defeat Varillas 3-6 7-6 7-5 and move into the last 8 in Gstaad @SwissOpenGstaad #ATPGstaad pic.twitter.com/VuynfH73QA

Fabio fantastico 😮‍💨 @fabiofogna #ATPgstaad pic.twitter.com/qrHS0P0oK6

A win to remember 💥 Lukas Klein overcomes home-favourite Wawrinka 7-6 2-6 7-5 to move into R2 in Gstaad @SwissOpenGstaad #ATPGstaad pic.twitter.com/Qm27PhNddC

Matteo marches on 💪 @MattBerrettini takes out defending champ Cachin 6-4 7-6 to progress in Gstaad #ATPGstaad @SwissOpenGstaad pic.twitter.com/FrAu1R6hnT

Shank you very much 🤣 #ATPGstaad @SwissOpenGstaad pic.twitter.com/LR5UMprW6O

Digging deep 💪 Juan Pablo Varillas overcomes former champ Thiem 6-3 5-7 7-6 in Gstaad #ATPGstaad pic.twitter.com/L9f4beTze6

Tick, tick, BOOM 🔥 @domithiem #ATPGstaad pic.twitter.com/ihfIeRiABk

Standing ovation 👏 Varillas wins a stunning 31-shot rally against Thiem #ATPGstaad pic.twitter.com/pqXxs7CPUQ