There has been a lot of rain, in Cincinnati, and also, the same thing last week in Canada. It is odd in  August, during the heat. Every year, the players pull out when they are injured, because they played so many matches, on the clay, at Roland Garros, on the grass, at Wimbledon, and now they started to play on the hardcourts. It can be brutal. However, some of the excellent players can control what they are doing, and not play every second. Many of the Slam winners have learned within him or her bodies, just like Novak Djokovic and Iga Swiatek, for the most part. They are playing this week in Ohio. They can actually win the event. Here are four matches on Friday.

Karolina Muchova  over Marie Bouzkova
Believe it or not,   Swiatek  edged Muchova in Montreal a week ago. It was darn close, so right now, if the excellent doubles player can play wonderfully, the No. 17 can go very deep at the tournament. She did reach into the final at Roland Garros, so when she is healthy, she can beat anyone. The other Czech, Bouzkova, is very decent, and she does have some interesting defense, point to point, but she has yet to be in the top 20. Maybe she will do it, eventually, but not now. Muchova will win it in straight sets, around 6-4, 6-3.

Carlos Alcaraz, over Max Purcell
Alcaraz edged Tommy Paul 6-4 in the third set. He could have lost, as in the second set tiebreaker, he threw so many errors, which is very unusual. But the young Spaniard re- composed, and he was more consistent. When he attacks, he can crush the ball. Purcell is a very good doubles player, but currently, he is trying to hit some bigger shots, in the singles. However, he did have a very good year in the singles, the small ones, so it looks like his forehand and his backhand are stronger. Yet Alcaraz will push him back, into the wall, and he will win it in two sets.

Alexander Zverev over Adrian Mannarino
The German had a terrific match on Thursday when he beat Daniil Medvedev in three, brutal sets. Yes, Zverev can be super  steady, and now he can really mix it up. As he said, “But at the end of the day I did what I had to do. I kind of fought it out and I’m happy to be sitting here as winner.” He can belt it, into the corners, but as he has said, he still is not 100 percent after he became hurt last year. Mannarino plays almost everyday, and he is older, but he just keeps moving on, on the court, consistently. He does like to mix it up, and change it around, but on Friday,  Zverev will be tired, but he will go for it, early. Zverev will win it in three sets, 6-4.

Iga Swiatek over Marketa Vondrousova
Almost once a month, Swiatek  can turn it on, and then she can rush forward, to hit some massive shots. His first serve is very big, and she can return and hit it very deep. Yes, though, she can become frustrated, and over hit, it. Vondrousova is skill full, and she can aggrieve. Her backhand is powerful, and her forehand is improving a lot.  She can upset Swiatek, as long as she can be super consistent, and really go for it, into the corners. However, Swiatek is on fire again, so she will win it in three sets, 6-3.