Aryna Sabalenka is the only seeded competitor remaining in the Western & Southern Open as the field is down to four.
Adam Scott is the outright leader after 36 holes at the Wilmington Country Club, but a star-studded chasing pack is within two strokes.
The managers were involved in a heated confrontation at the final whistle following Chelsea’s home clash with Tottenham.
The hosts were beaten by South Africa by an innings and 12 runs in the opening Test.