It was another action packed day on the men's side as play continued in St. Petersburg and the innovative Ultimate Tennis Showdown kicked off its third edition.
These are the Top 5 Photos from Friday.
The world No. 10 soared past Cameron Norrie, 6-2-6-1, to reach the semifinal round of St. Petersburg. The 22-year-old's ceiling continues to rise, as he improved to 32-7 on the year. Rublev refused to grant Norrie any opportunity to get settled in the 64-minute affair.