US Open tennis - Rafael Nadal and Roger Federer's withdrawals 'bring questions for future' - Justine Henin

Rafael Nadal and Roger Federer's US Open withdrawals 'bring questions for their futures' - Justine Henin. Nadal has become the latest big name to announce his withdrawal from the 2021 US Open as the Spaniard continues to struggle with a foot injury. A spate of injuries to big-name players has hit the US Open in advance of the final Grand Slam of the year.