Kvitova P. vs Collins D. R. prediction

i really do not know how collins achieve such good result. in my oppinion she is overrated player who had lot of luck, but in this match she will be ashamed by kvitova. petra is playing best tennis after wimbledon and she is flying on court. she serves perfecty, does not making errors on forehand and backhend and what really stuned me, her footwork. they already play this year in brisbane and kvitova won 2:1 in sets but that was much different match, i expect easy win...