Former world number one Caroline Wozniacki retired from her first-round match at the Italian Open because of a leg injury.
In March, she withdrew before the third round of the Miami Open due to the same issue with her left knee, and...
Williams took almost two months off after withdrawing ahead of the second round in Miami in March, also with a knee problem. Williams made it to the fourth round previous year at the French Open, her first grand slam since giving birth, with a pectoral injury.
She trailed 3-0 against Alize Cornet in the opening round of the Madrid Open earlier this month before pulling out with a back injury.
Williams, now ranked 11th, made her Grand Slam return in Paris 12 months ago following the birth of her daughter.
Utility equipment sparked deadly California wildfire
PG&E admitted in the days after the fire started that it had experienced a problem in the area where the fire was first seen. PG&E CEO Bill Johnson testifies before the state Assembly Utilities and Energy Committee in Sacramento on May 15, 2019.
2019 iPhone cameras take center stage in new leak
Apple could still change its mind on the color lineup, but production on the new units should start within the next few month. Aside from getting new colors, this year's iPhone XR is believed to get upgraded specs, particularly an upgraded camera.
Jets fire GM Maccagnan, name HC Gase interim replacement
Gase, the former Bears offensive coordinator, was sacked as head coach of the Dolphins on December 31 after two seasons in Miami. Eagles vice president of player personnel Joe Douglas is believed to be a primary candidate to replace Maccagnan.