Novak Djokovic rolls past Andrey Rublev at ATP Finals

World No. 1 Novak Djokovic needed just 69 minutes to defeat Andrey Rublev on Wednesday and cruise into the semifinals of the Nitto ATP Finals in Turin, Italy.

Djokovic defeated the Russian Rublev 6-3, 6-2 to win the Green Group. Djokovic won 88 percent of his first serves in the deciding set.

"I knew that I had to be on my toes and start well," said Djokovic. "It was quite a nervous start from both of us until 4-3, then