Serena's Shoes... What's going on.
First, these look like off the shelf Nikes, not very original like her Pumas.
But, my main concern is I saw her RE-TYING them between points at least THREE or more times during the match.
I don't seem to remember her having this problem with the Pumas.
Nike, please fix the laces problem, She will have problems with tougher opponents in the future if a shoe becomes untied during a point.