Current U.S. Open champion and Belgian superstar Kim Clijsters today taught a tennis lesson to rising American Christina Mchale and registered a comfortable victory over the teen prodigy to enter the quarterfinals of the 2010 Western and Southern Financial Group Women's Open, being played here in Cincinnati, Ohio in USA.

Click here to re-visit the moments of Clijsters' oncourt brilliance against Christina McHale.

Clijsters opened the match well and broke McHale's serve to race to a quick 3-0 lead. Two more service breaks followed in the Belgian's favour and resulted in her wrapping up the opening set by 6 games to 1.

The second set followed the similar pattern as Clijsters kept McHale on the run for the most part and completed the 6-1, 6-1 win with the help of 20 winners and 6 aces.

Meanwhile, Clijsters' compatriot and 12th seed Yanina Wickmayer put an end to a bad form and a series of losses from the first half of the season to beat Chinese star Na Li in a marathon 2-6, 6-2, 7-6(4) match that lasted two hours and 13 minutes in play

Earlier in the day, second seed and 2009 U.S. Open finalist Caroline Wozniacki suffered a shocking loss at the hands of Frenchwoman Marion Bartoli and bowed out of the event, losing 4-6, 1-6 rather handily.

The Dane was later joined by former champion and Wimbledon finalist Vera Zvonareva, who fell victim to Italian Flavia Pennetta's blistering groundstrokes.

Russian superstar Maria Sharapova continued her impressive run at the tournament when she took out Pole Agnieszka Radwanska, the seventh seed, 6-2, 6-3 in a mere 91 minutes of play.

Other winners of the day included Russian Anastasia Pavlyuchenkova, who took out Israeli Shahar Peer 5-7, 6-4, 6-4 and Serbian Ana Ivanovic, who got the better of Elena Vesnina 6-0, 6-3.