I think if Serena had been super motivated the scoreline would have been a little more embarrassing for Daniela.
Ni La beat Lucie Safarova in three sets and after losing the first set badly Ni La regrouped and was able to win the remaining sets.
However if Ni La struggled to beat Lucie then winning the Australian Open has just become an even bigger challenge.
Eugene Bouchard beat Lauren Davis in straight sets to make it to the fourth round.
Eugene is doing really well at the moment only time will tell how well she is doing when she meets tougher opponents.
In the men's draw Novak Djokovic beat Denis Istomin in straight sets. So far in this tournament Novak has not really been stretched and that can sometimes work against a player in the later stages of the slam.
David Ferrer also recorded a straight sets win against Jeremy Chardy to make to the third round.
He is making is way through the draw largely unnoticed and has a great chance to win his first grand slam.