'S-HERTOGENBOSCH, Netherlands - Amanda Anisimova's WTA grass court debut in singles will have to wait.

The teenager, set to play her first-ever tour-level singles match on grass as the No.8 seed at Libéma Open, was forced to withdraw from the tournament on Tuesday with a viral illness.

Anisimova and Australian Priscilla Hon were defeated in the first round of the doubles draw by No.4 seeds Aleksandra Krunic and Shuko Aoyama earlier on in the day, 6-4, 6-0. 

"Unfortunately, I will need more rest and recovery and I will not be able to compete at my best so I’m disappointed to have to withdraw from the Libéma Open," the French Open semifinalist said in a statement.

"This was my first visit to the Netherlands, and I hope to come back next year and play in front of the amazing fans."

Anisimova was set to return to the courts after a breakthrough run to the semifinals of the French Open, where she stunned defending champion Simona Halep in the quarterfinals and became the youngest to reach that stage in Paris since Nicole Vaidisova in 2006.

Lucky loser Anna Kalinskaya will face former finalist Natalia Vikhlyantseva in the last first-round match to be completed on Wednesday.

No.5 seed Petra Martic (low back injury) and No.6 seed Zheng Saisai (respiratory illness) were also among withdrawals this week.