Good afternoon and welcome. When Serena Williams stutters but survives at a tournament, it often means one of two things. Sometimes she emerges feeling invincible and goes on to claim the title, as was the case when she recovered from a set and 4-0 down to beat Victoria Azarenka – her opponent in the third round of the French Open today – at the 2010 Australian Open. More rarely, a wobble can indicate that she is genuinely out of sorts, as happened in Madrid recently when she survived three match points against Azarenka in the last 16 only to be beaten a couple of rounds later by Petra Kvitova, a player to whom she had never previously lost.