Wimbledon champion Jannik Sinner has rehired former fitness coach Umberto Ferrara. Sinner had parted ways with Ferrara ...

By Martyn Herman LONDON (Reuters) -Wimbledon champion Jannik Sinner has re-appointed his former fitness coach Umberto Ferrara ...

Wimbledon champion Jannik Sinner has rehired Umberto Ferrara as his fitness coach nearly a year after firing him for his role in the top-ranked player's doping case.