Unwell Alexander Zverev did not consult French Open doctors prior to defeat

Alexander Zverev felt unwell before and during his loss to Jannik Sinner (Christophe Ena/AP)

Alexander Zverev did not consult tournament doctors before taking to the court for his defeat by teenager Jannik Sinner at the French Open while feeling unwell.

The US Open finalist called for the doctor early on in the match and admitted after his 6-3 6-3 4-6 6-3 loss to 19-year-old Sinner that he had been suffering from a fever.