How many breaks of serve is required to win a set ?
The second looked the same as the first in the beginning , leading Rybáriková 4–1 with two breaks of serve , however Rybáriková change her style of play as she became more aggressive to win the next 4 games to lead 5–4 , but it was too late as Pe'er stopped her run to hold for 5–5 , and then edged the tiebreak 7–4 .