Jasmine Paolini leads Italy into Billie Jean King Cup semi-finals: Stamina, squad depth and the scheduling puzzle

When the clock at Shenzhen Bay Sports Centre passed 0:45, Jasmine Paolini was still on court. She had just completed a tense singles match against Zheng Qinwen less than three hours earlier, and now she had to step into the deciding doubles with Sara Errani. When the match ended, just before 1:00 a.m., Italy had secured their place in the Billie Jean King Cup semi-finals. But a glance at the 2-1 scoreline would miss the most important part of the story. I kept my VAR habit: freeze frames, slow motion, line calls. There are offside calls nobody sees, but the camera never blinks. This quarter-final was decided by such small details. Italy entered the tournament as two-time defending champions, chasing a rare threepeat. They faced China, the host nation, and the same opponent they had beaten in last year's quarter-final. Host pressure was heavy: Zheng Qinwen, Olympic champion, and Zhang Shuai, 37-year-old veteran, are formidable assets. Zhang Shuai gave China the lead with a 6-0 6-2 win over Elisabetta Cocciaretto in 62 minutes. She said: “I'm 37 years old. I've played many times. I think I can handle this moment.” Paolini levelled the tie by beating Zheng Qinwen 6-3 7-6(4). It was her first win over Zheng in four meetings. She was broken while serving for the match at 5-4 in the second set, then won the tiebreak 7-4. The deciding doubles became the platform for Paolini and Errani’s chemistry. They defeated Guo Hanyu and Jiang Xinyu 6-3 5-7 6-3, despite struggling on serve. Their partnership, built on Olympic gold and Roland Garros titles, was Italy’s structural insurance. In the other quarter-final, Ukraine beat Belgium 2-1. Anhelina Kalinina, back after three years, won her singles rubber against Jana Otzipka 6-7(8) 6-1 6-1, then clinched the doubles. Elina Svitolina lost to Greet Minnen 6-7(5) 6-4 6-4 after 2h47. Ukraine reached their second consecutive semi-final and proved they can win even when their highest-ranked player loses. The biggest concern is scheduling. Both winning teams asked their number one to play two live rubbers in one day, and the day ended near 1:00 a.m. The semi-final is on Saturday: recovery time is compressed. Serve is the most fatigue-sensitive stroke, and both Italians struggled to hold serve late in the doubles. Zheng Qinwen should not be written off after one home loss to a two-time Grand Slam runner-up. Italy’s path is also fragile: their lineup depends heavily on Paolini winning twice. Ukraine, by contrast, has just demonstrated deeper squad structure. The semi-final between Italy and Ukraine will test whether depth can overcome individual brilliance. If late-night scheduling continues, fatigue may decide the title. Officials should review the evening session. The referee is the only person on court not allowed to choose a side — and I stand behind them.