Serena Williams, Carlos Alcaraz fall in US Open mixed doubles quarterfinal

12 hours ago
" and "The 44-year-old Williams". 44 - 21 = 23. I will write "who is 21 years her junior" or "23-year-old Alcaraz" to be safe. Better to stick exactly to the source's wording: "Alcaraz, who is 21 years her junior