All three members of the groundbreaking group—Shang Juncheng, Wu Yibing and Zhang Zhizhen—played their opening matches on Monday, with Zhang advancing to the second round.

Also: Jan-Lennard Struff soars to a new career-high, the battle for No. 1 heats up on both the ATP and WTA rankings, and American Taylor Townsend breaks into the Top 10 in doubles.

The Australian Open champion is now a win away from taking home the crown at the Caja Magica for a second time in three years.

Before each day's play at the Mutua Madrid Open, we'll preview three must-see matches.

The 26-year-old is through to the last eight in Madrid after a nail-biting fourth-round victory over Taylor Fritz.

Before each day's play at the Mutua Madrid Open, we'll preview three must-see matches.

If it's action you're looking for, a loaded Day 2 in Melbourne is the place to be.

Zhang Zhizhen moves into the main draw as a result of the American pulling out.

Also, Jessica Pegula sets a new high of No. 3, Coco Gauff breaks the Top 5 and Zhang Zhizhen becomes the first Chinese man to reach the Top 100 in ATP rankings history.

Our running report from Flushing Meadows recaps a drama-filled opening day.