Emma Raducanu has received a promising sign ahead of the US Open mixed doubles tournament, where she is set to partner up with Carlos Alcaraz. The Spaniard is still in action at the Cincinnati Open, where he will contest the singles final at 3pm local time. Less than 24 hours later, he’s due to take to the court with Raducanu in New York.

Ten seeded players were in action during the Cincinnati Open quarterfinals Aug. 15. Here's how the action unfolded in Mason.

Carlos Alcaraz advanced to the quarterfinals of the Cincinnati Open, matching a historic milestone previously achieved only by Rafael Nadal and Pete Sampras.

Carlos Alcaraz takes on Alexander Zverev in the semi-finals of the Cincinnati Open, with both men looking to build momentum ahead of the US Open.

World number two Carlos Alcaraz battles past Andrey Rublev 6-3 4-6 7-5 to reach the Cincinnati Open semi-finals.

Carlos served well in the opener and landed many service winners. He secured an early break at love in the second game and created more chances at 4-1. The Spaniard converted the fourth break point and extended the gap.

Carlos Alcaraz's Cincinnati Open quarter-final match against Andrey Rublev was halted for an emergency in the stands. The Spaniard held to lead 1-0 in the deciding set when chair umpire Mohamed Lahyani realised someone in the crowd was struggling, and raced over to bring them water and an umbrella.

Carlos Alcaraz was involved in a heated exchange with the umpire during his Cincinnati Open last 16 clash. The world number two booked his place in the quarter-finals by beating Luca Nardi on