Wimbledon 2013: Agnieszka Radwanska through with crushing victory

Polish fourth seed dropped just four games as she defeated Mathilde Johansson on Centre Court

Agnieszka Radwanska earned her second crushing win of the week to reach the third round at Wimbledon as she impressed on Centre Court.

The Polish fourth seed reached her first grand slam final in London last year and looks in the mood to get through to another, however to do so she may have to beat Serena Williams, her conqueror 12 months ago, in the semi-finals.

Radwanska dropped just two games in her opener against Yvonne Meusburger and was almost as frugal today in giving away little to France's Mathilde Johansson before wrapping up a 6-1 6-3 win.

With victory for Radwanska in sight, the players had to leave the court when rain began to fall.

The Centre Court roof was closed to allow for a swift resumption and Radwanska remained focused to close out a solid early-round victory.

Next for her is a stiff test against the American 18-year-old Madison Keys, a player strongly tipped to join her in the top 10 before long.

Keys saw off 30th seed Mona Barthel today, after beating Britain's Heather Watson in her opener, and represents a threat to Radwanska.

Asked about Keys, Radwanska said: "I've never played her before so I think it's going to be another good challenge and we'll see."

Another straight-sets win was satisfying for the 24-year-old, who said: "It was a very good match with a lot of long, tight games.

"She fought to the end and I had to play my best tennis until the end of the match.

"It was always going to be difficult to go on and off the court but at Wimbledon you get used to it so I was prepared for that."