Schwartzman’s first ever match at the finals went a similar way to fellow debutant Andrey Rublev’s, with the Russian having barely laid a glove on 20-time Grand Slam winner Rafael Nadal during a straight-sets defeat on Sunday night.
And Schwartzman was equally powerless at the O2 Arena in London, failing to prevent a sixth loss from six matches against the clinical Djokovic en route to his own straight-sets loss.
Djokovic dropped his serve early on at the virtually empty arena, where on Sunday he was presented with the ATP's end-of-year world No1 award for a record-equalling sixth time.
But from that moment on he was immaculate.
The Serb broke back immediately and then pounced again when Schartzman served at 3-4, outmanoeuvring his opponent before pummelling away a forehand winner into the corner.
With no fans in the 18,000 arena to rally to the Argentine's underdog cause, world No9 Schwartzman – who qualified here in the absence of the injured Roger Federer – never looked capable of turning the opening Group Tokyo 1970 match into a contest.
Djokovic secured two breaks in the second set and clinched victory with minimum fuss.
"I was very happy with the way I played in the second set when I started swinging through the ball," Djokovic said on court.
"It was close I think until I broke at 4-3. It was tough for Diego, first match in the arena, he maybe wasn't playing his best in the closing moments of the first set."
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