Swiatek and Alcaraz reign supreme, Tsitsipas defends his backhand and what next for Raducanu?

LISTENER QUESTIONS

Kenny Koala Bear on Twitter: What can be done to address the distinct prize money differences in WTA and ATP tournaments? The difference between Stuttgart and Barcelona was huge!

Carmen on email: With the clay season in full swing, I'd like to learn more about how chair umpires determine which specific mark on the court was made by the ball when a player challenges a call. The umpire seems very confident about which mark it was but how can that be if there are so many smudges on the clay court. At times it seems quite arbitrary. Also, why isn't Hawk Eye the default choice? It seems like a more reliable, fast and fair way to call a ball in or out.

Ian Warren in Twitter: Is the WTA trying to win a prize for most incompetent sporting body? First China saga followed by top 10 players not allowed to enter 250 events and the schedule of tournaments? Last week a 28-player draw in one tournament while the men had three tournaments.

Matt on email: Watching Alcaraz drop shot Tsitsipas over a dozen times it struck me that drop shots seem to be a more important tactic than they used to be. I’m only 29 so don’t have much to compare to though! What do you think, are drop shots used more now than they used to be? Also, how much can you coach when to play a drop shot and how much is down to instinct?

IN TENNIS NEWS

Iga Swiatek retains the Stuttgart title on return from injury and proves why she is favourite for the French Open title

Ons Jabeur is out of Madrid with a torn calf muscle

What next for Emma Raducanu after a thrashing at the hands of Jelena Ostapenko?

Novak Djokovic joins the long list of withdrawals in Madrid with what we suspect is an elbow injury

Dusan Lajovic knocked him out in Banja Luka before claiming only the second title of his "storied" career

Carlos Alcaraz defended his Barcelona title including a one-sided victory in the final against Stefanos Tsitsipas, who promises to open a one-handed backhand academy in the aftermath...

Holger Rune saves four match points to beat Botic Van De Zandschulp and win the title in Munich

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