Jannik Sinner's doping case has divided the tennis world for months, with the announcement he will serve a three-month ban leading to further questions.
Some players have said "they don't believe in a clean sport any more", while others say Sinner is "taking responsibility for the mistakes of others".
The World Anti-Doping Agency initially sought a ban of up to two years but reached a settlement after accepting the Italian inadvertently ingested a banned substance and "did not intend to cheat".
The world number one has not been on court since his Australian Open triumph last month and will now be banned until 4 May, returning in time to begin preparations for the year's second Grand Slam at the French Open.