Serena Williams' comeback hit a bump Tuesday with a loss in her opening-round doubles match at the Berlin Open

Even at a combined age of 90, opponents should still be wary of facing the Williams sisters at Wimbledon.

Venus Williams set a record just by starting her first-round match at the Australian Open, a testament to her endurance and longevity at the highest level of tennis.

Seven-time Grand Slam champion Venus Williams said Saturday she was "up for the challenge" as she gets set to become the oldest woman to play at the Australian Open at age 45.

Coco Gauff and Venus Williams could meet in the second round of the Australian Open, another potential chapter in a tennis tale that started with a 15-year-old on her Grand Slam debut beating a seven-time major winner at Wimbledon.

The American will play her first Australian Open in five years and will be the oldest woman ever at the Melbourne tournament after being granted a wildcard.

Williams' last tournament was the US Open in August, not long after returning from a 16-month break.

Seven-time major singles champion Venus Williams was handed a wildcard to the Australian Open aged 45 on Friday, becoming the oldest woman ever to play at the season-opening Grand Slam.

Seven-time major singles champion Venus Williams was handed a wildcard to the Australian Open aged 45 on Friday, becoming the oldest woman ever to play at the season-opening Grand Slam.

Venus Williams has been awarded a wild card for the Australian Open warm-up event from January 5-11 after only returning to the circuit in August at the US Open after a 16-month break.