It was a day for brotherly attention, pride and love at the Madrid Open 2026 ATP Masters 1000 tournament on Thursday, and it involved World No. 2 Carlos Alcaraz.
Alcaraz travelled to the Caja Magica to watch the debut of his younger brother Jaime, who, at just 14 years of age, is competing in the Under-16 section of the Madrid Open, a tournament that brings together the most promising talent from around Spain. The competition, designed to strengthen the future of tennis, gives young hopefuls the chance to compete on the same stage as the ATP Tour’s stars.
The No. 2 player in the ATP Rankings watched closely on Court 7 as Jaime opened with a 6-3, 6-3 win over compatriot Pol Mas in one of the most-watched matches of the day. Carlos wished his brother
all the best before the match began, then watched the entire encounter unfold from the stands alongside several relatives.
Video
De Alcaraz a Alcaraz 🤝@carlosalcaraz | @ATPTour_ES | #MMOPEN pic.twitter.com/AJQRPnKKNo
— #MMOPEN (@MutuaMadridOpen) April 30, 2026
The Under-16 Madrid Open has become a major attraction at the Spanish ATP Masters 1000 event since it began in 2013. Emerging stars of Spanish tennis such as Martin Landaluce, Daniel Merida and Rafael Jodar, all of whom have enjoyed time in the spotlight during this fortnight in the Spanish capital, have previously played in the event.
Carlos Alcaraz, who is not competing in Madrid due to a right wrist injury, owns a 22-3 record this season, according to the ATP Win/Loss Index.
Blockx Busts Ruud’s Title Defence
Meanwhile, in the main Madrid Open draw, Alexander Blockx upset 12th seed and 2025 champion Casper Ruud 6-4, 6-4 to march into the semi-finals at the clay ATP Masters 1000 event. World No. 69 Blockx, who had not won an ATP Tour match on clay before his third-round run at the Monte-Carlo Masters earlier this month, produced a classy all-around display to overwhelm Ruud inside Manolo Santana Stadium.
(With inputs from Agencies)
