Sinner had a straight set victory over Ben Shelton.
Jannik Sinner has maintained his winning run at the ATP Finals tennis with a straight sets victory over Ben Shelton.
The Italian defending champion is already through to the knockout stages of the season-ending tournament in Turin.
It's winner takes all tonight when Alexander Zverev faces Felix Auger Aliassime for a place in the semi-finals.

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Friday Morning Sports Update