Hours after Ginepri blew a huge advantage and bowed out of the tournament, second seed Roddick overpowered South African Wesley Moodie 7-5, 6-3, 6-2 yesterday to advance to the third round of the Australian Open.
Roddick hit 30 winners and committed just nine unforced errors to set up a match with French qualifier Julien Benneteau.
Earlier, 13th-seed Ginepri won the first two sets and held a 3-0 advantage in the third before falling to German qualifier Denis Gremelmayr 2-6, 5-7, 6-4, 6-3, 6-3.
The first man to reach the third round was eighth seed Gaston Gaudio of Argentina, who routed German qualifier Lars Burgsmuller 6-3, 6-2, 6-3. Gaudio will face Frenchman Fabrice Santoro, a 6-4, 6-1, 6-4 victor over Romanian Andrei Pavel.
The 2002 champion, tenth seed Thomas Johannson of Sweden, survived a stiff test against Belgium’s Xavier Malisse before claiming a 6-3, 3-6, 7-5, 4-6, 6-3 win. In the third round, Johannson will meet French qualifier Gilles Simon, who upset 19th-seeded Czech Tomas Berdych 6-3, 6-2, 4-6, 6-2.
In the last match of the night, fourth seed David Nalbandian of Argentina recorded a 6-4, 3-6, 6-4, 6-2 victory over Stanislas Wawrinka of Switzerland.
In the women’s draw, top-seeded American Lindsay Davenport had her difficulties with Karolina Sprem before recording a 7-6 (7-4), 6-3 victory over the Croatian. The 29-year-old will play 25th seed Maria Kirilenko of Russia, who beat Galina Voskoboeva.
Defending champion Serena Williams routed Camille Pin of France 6-3, 6-1 in 49 minutes and will face 17th seed Daniela Hantuchova of Slovakia, a 6-4, 6-1 winner over Akgul Amanmuradova of Uzbekistan.
Fourth-seeded Russian Maria Sharapova saved three set points in the 10th game of the second set before defeating American qualifier Ashley Harkleroad 6-1, 7-5. Sharapova will face Croatian Jelena Kostanic in the third round.