Unless you’re a tennis die-hard, you probably didn’t know much about Terence Atmane before this week. The 23-year-old Frenchman is ranked as the World No. 136 and has played just 14 matches on the ATP Tour in the last calendar year.

The Frenchman and ATP world No. 136 heading into the tournament made an improbable run to the semifinal where he earned a date with world No. 1 Jannik Sinner on Saturday. The match happened to fall on Sinner's 24th birthday, and Atmane came prepared with a gift for his opponent.

The semifinals are set at the Cincinnati Open. Here are the eight remaining players bidding for a title in Mason.

The total bonus is a whopping $21 million this season, nearly double what the ATP offered in its first year when OneVision launched. Sinner, however, will not be among the Top 30 players eligible for the reward.

Jannik Sinner has been put on notice about a rising star on the ATP Tour, who could soon make his mark at the top of the sport. Many tennis fans would welcome this change, as the duopoly that has formed at the top of the men’s game is starting to wear a little thin.

Jannik Sinner won't be eligible to receive the ATP's Bonus Pool prize money due to tournaments he missed while serving his doping suspension.

Jannik Sinner ignored a mid-match rain interruption lasting nearly three hours as he booked his quarter-final spot at the ATP-WTA Cincinnati Open with a 6-4, 7-6 (7/4) victory over Adrian Mannarino.

Jannik Sinner "felt great on the court" as he annihilated Felix Auger-Aliassime 6-0, 6-2 on Thursday to reach the ATP-WTA Cincinnati Open semi-finals with his 25th straight hardcourt match victory.