The Australian Open, which started Sunday (Saturday night in the US), is the first Grand Slam tournament of 2025 — and the first major championship to be held since Nadal, 38, played his final match at the Davis Cup in November.

Novak Djokovic alleged in a lengthy GQ interview that he was “poisoned” by lead and mercury in his food while he was briefly held in Melbourne in 2022.

In his bid to land a 25th Grand Slam, the 37-year-old has enlisted the help of Andy Murray, an opponent he faced 36 times and who knows as much as anyone about the strengths of his game.