Grigor Dimitrov and Tommy Paul are trying to catch up in the ATP Race to Turin this week. But the story of the event at the ATP Stockholm Open has undeniably been Stan Wawrinka, who is into his first semifinal in well over a year.

Tommy Paul won his career-best 42nd singles match on tour this season, as the fourth seed defeated Laslo Djere 6-2, 7-6 (2) on Wednesday at the BNP Paribas Nordic Open in Stockholm.

At 39 and a half years, Stan Wawrinka is still capable of delivering notable results! The three-time Major winner is through to his 64th ATP semi-final in Stockholm following a tight 7-6, 7-6 victory over the top seed Andrey Rublev.

Day seven of the ATP Stockholm Open promises to be exciting, with a number of thrilling quarterfinal matches lined up in the Swedish capital. As always, we at LWOT will offer our predictions for all four matches,

Stan Wawrinka upsets top seed Andrey Rublev to reach Stockholm semi-finals; Watch all the ATP and WTA action on Sky Sports Tennis and Sky Sports+ which is integrated into Sky TV, streaming service NOW

Stan Wawrinka is still capable of delivering notable wins at 39 and a half years. The Swiss veteran made a rock-solid start at the ATP 250 event in Stockholm, toppling the 6th seed Brandon Nakashima 6-4, 6-4 in an hour and 20 minutes for his seventh ATP triumph of the season.