(AP Photo/Lynne Sladky)
KEY BISCAYNE, Fla. (AP) Before the first set ended Tuesday, Novak Djokovic had busted a racket in anger, drawn jeers from the crowd and received two code violations, which cost him a point penalty.
There were no further outbursts, and as Djokovic's play improved, so did his mood. He rallied from a break down in the second set and beat Alexandr Dolgopolov 6-7 (3), 7-5, 6-0 in the fourth round of the Miami Open.
"The first set and a half, he was dominating from the baseline," Djokovic said. "I was frustrated and nervous and wasn't showing composure on the court."