Serena Overpowers Urszuala Radwanska to enter in the third Round

Twice former champion Serena Williams produced an erratic performance but proved too strong for Polish teenager Urszula Radwanska whom she dispatched 6-4, 6-4 in the second round at Wimbledon on Wednesday.

The American sixth seed, seeking her first singles title here since 2003, grimaced and frowned her way through, looking far from comfortable on Court Two as she battled her own demons in an error-strewn display that mirrored her opening round win.

Williams, with all her grasscourt experience, found neither rhythm on serve nor her range from the baseline but she still had too much firepower for the 17-year-old wildcard and younger sister of the more renowned Agnieska.

Williams raced into a 4-1 lead but made hard work of claiming the first set. Radwanska was in no mood to throw in the towel in the second, clawing back to 2-2 from a break down before Williams made the decisive second break.