Serena Williams will team up with Carlos Alcaraz to create a powerhouse mixed doubles pair in her return to the US Open. NBC News’ Valerie Castro reports.

Tennis greats Serena Williams and Carlos Alcaraz spoke to NBC News' Marquise Francis about their mixed doubles match at the U.S. Open earlier this week, which they lost.

Wednesday's announcement continues an unexpected comeback for Serena, who famously "evolved" away from professional tennis after the 2022 Open and did not compete for more than three years.