Djokovic, who has been nursing a shoulder problem, withstood some spectacular hitting by the seventh-seeded Berdych, who had a point to win the match at 6-5 in the decider but put a forehand into the net.
Berdych fell apart in the tiebreaker and a relieved Djokovic took his 2011 win-loss record to 70-4.
"I wasn't very satisfied with my performance tonight," Djokovic said. "I know I wasn't playing on top of my game."
Colleges * Marko Cheseto
, an All-America distance runner who spent more than 2 days in freezing winter temperatures without winter gear has had his legs amputated just above the ankles. Cheseto, 28, is one of several Kenyan runners who competed for the University of Alaska Anchorage in cross-country and track. The amputations were reported on the UAA Athletic Department website.
* Houston Baptist is moving from the Great West Conference to the Southland Conference.
Philly File *
Saint Joseph's Carl Jones
was named the Atlantic 10's basketball player of the week.
* Penn senior Zack Rosen and sophomore Alyssa Baron were named the men's and women's Ivy League players of the week for the second straight week.
Sport Stops *
Former NBA All-Star Cedric Ceballos
, 42, has been hospitalized after what his publicist called "a series of small heart attacks" and was scheduled to undergo surgery in Phoenix.
* NASCAR has cut three races from the 2012 Truck Series schedule. The series will run 22 races next season.