🚨 CARLOS ALCARAZ BOMBSHELL! SERENA'S EX-COACH DROPS His 2027 GRAND SLAM Prediction!

After Carlos Alcaraz's quarter-final exit at the US Open, legendary coach Rick Macci — who developed Serena Williams, Venus Williams, and Andy Roddick — made a bold public prediction: Alcaraz will win at least two, maybe three, Grand Slams in 2027. In this video, we break down exactly what Macci saw in that loss, why his track record makes this prediction worth taking seriously, and what it would mean for Sinner and Zverev if he's right. Watch till the end and drop your prediction in the comments. #CarlosAlcaraz #RickMacci #Tennis #ATPTour #TennisNews #GrandSlam #Alcaraz2027 #Sinner #Zverev #TennisPrediction #USOpen2026