Murray holds off Lorenzi to reach US Open fourth round

New York: Wimbledon champion Andy Murray battled past energetic Italian journeyman Paolo Lorenzi 7-6 (7/4), 5-7, 6-2, 6-3 on Saturday to reach the last 16 at the US Open.

Out of sorts in the early going, Murray had all he could handle from the 34-year-old Lorenzi, but worked his way through to a meeting with Bulgarian Grigor Dimitrov, a 6-4, 6-1, 3-6, 6-2 winner over Portugal`s Joao Sousa.