At 16, Cavan Sullivan is already carrying the weight of a national projection. The Philadelphia Union winger has received his first United States call-up after a remarkable MLS campaign, with Mauricio Pochettino handing the teenager a chance to test himself on the international stage.
Sullivan, born in Pennsylvania, is 16 years and 354 days old and becomes the second-youngest player ever selected for the US national team. Only Freddy Adu was younger when he entered the senior picture, a reminder that early fame does not always guarantee a smooth career.
The United States have four friendlies scheduled between 29 September and 6 October, giving Sullivan his first opportunity to make an impression under Pochettino. His selection follows a season in which he has supplied six goals and 11 assists in 16 MLS starts.
A teenage force in Philadelphia
Used as an attacking midfielder and increasingly on the right wing, Sullivan has become one of the standout players in MLS despite his age. At 1.70 metres tall, he has caught attention with quick changes of pace, close control and an ability to combine his individual flair with work for the team.
His performances have placed him in the discussion for the league’s best-player award alongside Inter Miami’s Lionel Messi, who continues to produce at the age of 39.
Philadelphia have also felt the impact. Since MLS resumed in mid-July after its World Cup break, the Union have gone 10 matches without defeat, with Sullivan playing a central role in their rise.
Paul Kennedy described the youngster’s value as extending beyond dribbling and scoring.
“What separates him is not simply his one-on-one ability or his eye for goal,” Kennedy said. “He lifts the players around him because he works so hard.”
Kennedy nevertheless urged caution over the scale of the next step, noting that the intensity Sullivan will encounter in England will be far greater than in MLS.
City agreement and a European challenge ahead
Sullivan has been on a fast track since signing his first professional deal at 14. In March 2024, he became the youngest American athlete in any sport to sign a professional contract when he committed to Philadelphia.
Football is deeply rooted in his family. He shares the Union squad with his 22-year-old brother Quinn Sullivan, while his own rise has already led to an agreement with Manchester City.
He is expected to join the English club when he reaches adulthood on 28 September 2027. A loan to another club within the City Football Group remains a possible route before any first-team role in England.
Player agent Jérôme Meary, who works between the United States and France, believes City have identified a talent worth developing carefully.
“His real room to grow will come when he makes the move to Europe,” Meary said. “City have an excellent recruitment structure and they know how to plan for these situations.”
Meary also sees Sullivan’s confidence as an asset rather than a concern. The teenager recently said he could have helped the United States in their World Cup last-16 defeat to Belgium, a 4-1 loss.
“A player of 16 trying to establish himself among adults has to believe in himself,” Meary said. “That edge is something he should keep.”
The Freddy Adu warning
Comparisons with Adu are unavoidable because of their age and their place in American football’s imagination. Adu made his MLS debut for DC United at 14 in 2004 and was once treated as the country’s defining prospect, but his European journey unravelled and he eventually represented 15 clubs in nine countries.
Meary believes the two talents should not be judged as identical cases. Adu was more physically advanced at the same age, he said, but Sullivan possesses stronger game intelligence, technique and overall footballing ability.
The United States will now see whether Sullivan’s club form can translate immediately to the senior international environment. For the Union, the winger is already a difference-maker. For Pochettino, he is the latest young prospect to be tested under the sharp lights of a national shirt.
