There have already been some upsets against the Wimbledon betting line, though the favorites remain. Serena Williams and Venus Williams are the favorites on the distaff side and Roger Federer and Andy Murray on the men’s.

Super sportsbook Bodog takes a betting preview.

Looking at this year’s Wimbledon tournament on the women’s side, it seems like a very safe bet to say a Williams sister is going to win.

Serena is the favorite at +175, but Venus is not that far behind at +250 and how can you bet against the 29-year-old who has reached seven Wimbledon finals in the last decade?

The strongest challenge to Venus’ dominance is likely to come from across the breakfast table at her Wimbledon base in the leafy south-west London village.

It has been six years since Serena last won Wimbledon but the world number two still has the potential to beat any of her peers, including Venus.

So far, so good this year for the sisters.

Venus recovered from an early stumble on the slick grass Tuesday and defeated Stefanie Voegele 6-3, 6-2.

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With Rafael Nadal dropping out of this year’s Wimbledon tournament you would think that Roger Federer would have a cakewalk to another title.

Well that may be true on paper, but there are still other players out there who could give Federer a run for his money.

Federer, who is listed at a staggering -175 to win, could find Andy Murray (+275) in his path at some point.

These two players are clearly getting most of the attention as the tourney begins, but it will be Murray that will need to step up his game if he is to upset Federer.

Federer opened his Wimbledon with a routine 7-5, 6-3, 6-2 victory over Yen-hsun Lu.

Murray launched his assault on a maiden grand slam title with a 7-5, 6-7, 6-3, 6-4 victory on Centre Court over Robert Kendrick.

More odds at Bodog.