In the Western and Southern Open, the four top seeds have made the men's semi finals, Medvedev, Tsitsipas, Zverev, and Rublev. While Djokovic has skipped this one, it feels as if thos may be a fairly common line up infuture, with Thiem if he returns from injury and depression, and Berrettini, Shapovaliv, Ruud, Hurkacz, and Sinner, the obvious other contenders. Can't see this being a period where there is a big 3 or 4 hoovering up all the slams. That doesn't mean, of course, that Djokovic won't complete the calendar slam but I suspect if he does he might find it harder to motivate himself - rather as he did after completing the Nole Slam.
Elsewhere Raducanu is into the semi final in Chicago.