Rogers Cup quarterfinals set

Here are Friday's Toronto quarterfinals:

Alisa Kleybanova vs. Jelena Jankovic: The big-hitting Kleybanova got a bit of a break in that Jankovic played a grueling third round very late Thursday night because of a rain delay. She is going to be tired. But she will still be JJ.

Agnieszka Radwanska vs. Maria Sharapova: Sharapova has her serve under better control now, which will make it harder for the clever Radwanska to get the best of her.

Samantha Stosur vs. Elena Dementieva: Dementieva had a bad day Thursday, but that doesn't mean she will have a bad day twice in a row. One way or the other, she will face a player who continues to find her considerable potential. If Dementieva's serve is on, it could get interesting. If it isn't, she could be in trouble.

Lucie Safarova vs. Serena Williams: Suddenly Safarova...but the game now gets harder. The two have met only twice, both times on hard courts. Williams won both matches, but one of them was a very close affair. Safarova's confidence is doubtless on the rise, but confidence sometimes fades when Williams is on the other side of the net.