Carlos Alcaraz's ongoing right wrist tenosynovitis, which has sidelined the world No. 2 and defending U.S. Open champion since his April withdrawal from Barcelona, remains the dominant factor shaping trader views on his participation. Recent pullouts from the Canadian Open and Cincinnati Masters underscore a conservative recovery timeline, with no competitive matches since spring and expert commentary advising caution ahead of the August 30 start in New York. Alcaraz remains on the official entry list and has targeted a late-summer return, yet the absence of recent form, head-to-head data, or confirmed medical clearance creates meaningful downside risk. The 60.5% implied probability for a yes outcome reflects the wisdom of crowds balancing his elite baseline ability and Slam motivation against prolonged injury uncertainty and limited preparation time.