American talks life on the professional circuit and those making sacrifices for a pay cheque, often compromising physical and mental welfare

For Mackenzie McDonald the players’ push for greater prize money and welfare contributions from the grand slam tournaments could result in the difference between putting food on the table and making a decent living.

After 10 years on the ATP Tour the 31-year-old American is not pleading poverty, but knows that life on the professional circuit can be a hand-to-mouth existence, with players’ physical and mental welfare often compromised due to their desperation to get back on court.

• Czech pair beat Bencic and Cobolli in deciding tiebreak

• Revamped event draws strong crowds at Arthur Ashe

• Singles stars dominate after doubles specialists exit

To many who came to the US Open grounds this week, the showpiece of the mixed doubles championship came Tuesday afternoon, with the returns of Serena Williams (after four years away from tennis) and Carlos Alcaraz (after four months out with a wrist injury).

To the players who remained in the field after Williams and Alcaraz exited in the quarter-finals, the real highlight was Wednesday night’s final at Arthur Ashe Stadium, with its $1m in prize money on the line. Karolína Muchová and Jakub Menšík made the most of the spotlight, beating Belinda Bencic and Flavio Cobolli 6-3, 1-6 (10-6) for the title.