Novak Djokovic barely got out of first gear but was more than enough to beat Briton Kyle Edmund 6-3 6-3 in the second round of the Miami Open on Friday.
The top seed, who is trying to join Andre Agassi as a six-times Miami winner, improved his record since the start of 2015 to 105-7, picking up 14 titles along the way.
Just five days after an emphatic victory at Indian Wells, the Serb adjusted well to the steamy conditions in south Florida. He was broken once, in the first set, but broke 21-year-old Edmund four times.
Earlier in the day, Juan Martin del Potro had two surprises — the first when his scheduled opponent Roger Federer withdrew with illness, and the second when he fell 6-4 6-4 to lucky loser and fellow Argentine Horacio Zeballos.