Speed on the court has been a hot topic at various ATP events this year and the Shanghai Masters is no different.
Andy Murray feels the hard surface is playing incredibly fast, which led him to give up the first set against Juan Ignacio Londero yesterday.
The three-time Grand Slam Champion has again advanced to the second round, where classified players enter the draw.
Novak Djokovic and Roger Federer are the top two players in the tournament, so they were placed in opposite parts.
And world number 3 Federer expected the theater to play very fast, which Murray confirmed is: "Conditions are very, very different from the last two weeks," said Murray.
"The courts are playing much, much faster and arriving quite late from Beijing, I didn't have much time to get used to it.
"I always like to play here, I like the faster conditions, but it's complicated.
"Since I started playing again, these are by far the fastest conditions I've ever played."
Murray was speaking after beating Londero at Center Court – the same spot Federer faces Alberto Ramos-Vinolas this morning.
"It's a fast block. I think it also suits my game," Federer said before the draw.
“Of course, when it's fast, it's best to be careful and accurate, especially in the top three.
“The weather is good, the practice is going well. I've been busy, got here early and I'm ready to go. "
Djokovic starts his campaign against Denis Shapovalov tomorrow.
The Serb won the Japanese Open title last week by beating John Millman in the final.