A number of games are down for decision.
Japan's Naomi Osaka has won her first Grand Slam match since pulling out of the French Open.
She defeated Czech player Marie Bouzkova 6-4, 6-1 in the first round of the US Open in New York.
Later on today, top seed Ashleigh Barty will meet Vera Zvonareva.
Andy Murray has been knocked out of the men's singles.
He went down in five sets to Stefanos Tsitsipas having been 2 sets to 1 ahead.
World number one Novak Djokovic is to take on Holger Rune later today.
Carla Ward Names ROI Women's Squad For FIFA World Cup European Qualifiers
Tottenham Believed To Be In Discussion With Roberto De Zerbi Over Club's Vacant Managers Role
Monday Morning Sports Update
LGFA National League Division 1 - Kildare v Kerry
Hanlon Concrete LTD Senior Football League Results
Kildare U20 Hurling Team vs Westmeath
Hurling League Finals Round-up
Croke Park Hosts Division 3 and 4 Finals
