​If Lamine Yamal is one of the biggest stars at the 2026 World Cup, his little brother Keyne may not be far behind.Keyne has been an ever-present at the World Cup, with the camera often finding him celebrating wildly in the stands after Spain goals.AdvertisementAdvertisementAdvertisementYamal’s brother is likely attracting some extra attention because unlike most World Cup siblings, he happens to be a toddler.Keyne is actually Yamal’s half-brother. Yamal’s mother and father split when he was young, and his mother Sheila Ebana remarried and had two children, with Keyne born in September 2022.Yamal and his younger brother have starred in TikTok videos together, raising Keyne’s profile even before he took to the world stage this summer.Keyne was also in attendance at the Ballon d’Or ceremony in 2024, as Yamal won the Kopa Trophy for best under-21 player. The three-year-old is also a frequent attendee at Barcelona matches, watching his older brother star for the La Liga champions.AdvertisementAdvertisementAdvertisementAhead of Spain’s semifinal against France, Yamal was asked if his brother was aware of all the attention that has been coming his way.”I don’t think he’s realized,” Yamal said. “He does what he does at home and when the camera is on him, he does something goofy.”When he’s older, he’ll see it. I like that people have so much love for him. I like seeing him on the screen. He entertains me.”If Yamal lives up to his lofty billing against France, Keyne may be attending his first World Cup final on Sunday in New Jersey.1 / 5US forward #20 Folarin Balogun (C) celebrates with teammates after scoring his team’s third goal during the 2026 World Cup Group D football match between USA and Paraguay at the Los Angeles Stadium in Inglewood on June 12, 2026.(PATRICK T. FALLON, AFP via Getty Images)The biggest stories, every morning. Stay up-to-date on all the key sports developments by subscribing to USA TODAY Sports’ newsletter.AdvertisementAdvertisementAdvertisementThis article originally appeared on USA TODAY: Lamine Yamal’s little brother is Spain star’s biggest fan at World Cup