All top contenders at this year's Wimbledon Championships were able to march through to the second round. Some were tested along the way though.
Serena Williams was first out on Centre Court and had to go three sets to get to the win against Aravane Rezai.
Williams actually played well despite going to three sets. Her percentages in all categories were very good, but Rezai just hung around and played well herself.
Serena should be able to come away from this match with quite a bit of confidence, as she played rather well.
Roddick's serving performance was outstanding as he won 85 percent of his first serve points while hitting 30 aces.
Federer on the other hand did most of his work from the ground as he hit 53 winners to only 23 unforced errors, although his serving was also impressive (won 89 percent of first serve points).
Both men will look to create more break points and convert on them in their next matches as both went 3-7 on those break chances.
Robin Soderling struggled the most of contenders on the men's side. He beat Philipp Petzschner in four sets.
Soderling struggled to get anything going hitting only 35 winners to 44 unforced errors.
Not all contenders struggled however.
Maria Sharapova and Caroline Wozniacki on the women's side rolled through their first round matches. Each woman lost only three games while committing very few unforced errors.
Novak Djokovic rolled through Jeremy Chardy of France 6-4 6-1 6-1 in only an hour and twenty minutes to move on.
There were a few upsets on both sides as 15th seed Jelena Jankovic was ousted by Maria Jose Martinez Sanchez on the women's side.
Three seeds lost on the men's side on Tuesday.
Twenty-second seed Alexander Dolgopolov lost to Fernando Gonzalez in his first tournament back in a while.