NEW YORK (AFP) - Two-time US Open champion Venus Williams has avenged an earlier loss by routing ninth seed Agnieszka Radwanska 6-1, 6-3 setting up a showdown with sister Serena in the quarter-finals.

Venus, who won back-to-back US Open titles in 2000 and 2001, avenged a loss to the Polish No. 1 in their only other career meeting two years ago in Luxembourg, where 17-year-old Radwanska won 6-3, 6-0.

Venus Williams' sister, Serena Williams who is fourth-seeded, has easily beat Severine Bremond of France 6-2, 6-2 in the fourth round of the 20.6 million dollar US Open on Monday.

Venus hammered four aces, won 77 percent of her first serve points and converted five of 14 break-point chances in the 84-minute match at Arthur Ashe Stadium.

She came out with plenty of fire, winning the first set in just 32 minutes before clinching the victory on her second match point when the error-prone Radwanska sailed a forehand into the net.

Venus never let Radwanska into the match, jumping on her serve and attacking the net. Venus broke Radwanska in the second and fourth games of the opening set and then held serve to take a 5-0 lead.

She smacked a 121-mph ace to win the fifth game and hit a total of 33 winners to Radwanska's 11.

Venus won her seventh career Grand Slam title earlier this year, successfully defending her Wimbledon title without dropping a set and beating her sister Serena in the final.

She is trying to reclaim her past glory as she once held the No. 1 ranking for 11 weeks in 2002.

Last season at the US Open, she knocked off Ana Ivanovic and Jelena Jankovic - currently number one and two in the world - before losing in the semi-finals to eventual champion Justine Henin, who is now retired.

Venus won the gold medal with Serena in the Beijing doubles event.

Source: AFP