Maria Sharapova thanked fans for their "loyalty and support" in a Facebook post after her failed drugs test.
The five-time Grand Slam winner, 28, revealed on Monday that she tested positive for meldonium in January.
"I woke up yesterday morning with an inbox full of love and compassion," wrote the Russian. "Your wonderful words put a smile on my face."
Sharapova, who faces a ban of up to four years, said she was "determined to play tennis again".
More to follow