Shanghai:Andy Roddick survived a second-set lapse as he beat fourth-seeded Nikolay Davydenko 6-3, 4-6, 6-2 on Monday in round-robin play at the season-ending Masters Cup.
Mixing up his powerful serve and forehand with forays to the net, Roddick fended off four break points in the first game, broke Davydenko once to take the first set and again to go up 4-3 in the second.
Appearing in complete control, the fifth-seeded Roddick then won only two points in the next three games as the Russian broke him twice and leveled the match.
Roddick smashed his racket after missing a forehand wide on set point, then managed to pull himself together, running off five straight games to take control of the third set at 5-1.
After Davydenko held, Roddick finished off the match by holding serve at love, then had to wait to celebrate as Davydenko challenged whether the final shot on the line was good. It was. Roddick won 16 of 18 points on his serve in the set.
Top-ranked Roger Federer was facing No 7 Fernando Gonzalez of Chile later in the other Red Group match of the tournament that features the top eight men's singles players and doubles pairs.
Roddick, who will lead the US team against Russia in the Davis Cup final at the end of the month, has been bothered by injuries that kept him out of tournaments in Madrid and Paris, sandwiched around a first-round loss in Lyon.
But he says he is completely healthy now, taking advantage of the time off to build up his leg muscles.
American flags dominated the national banners draped around 15,000-seat Qi Zhong Tennis Stadium, which was only about half-full. Two young Chinese women flashed a sign that said "Ace ace baby," and Roddick complied with nine for the match at speeds up to 225 kph (140 mph).