Cavan Sullivan, despite having signed with Manchester City in 2024, cannot officially join them until 2027 when he turns 18. He is currently playing with Philadelphia Union but has taken the opportunity to travel to England for a mini-stage with Manchester City's youth team. Sullivan has expressed his desire to succeed at Manchester City, describing it as a dream team for every child. He and his family, along with his agents, decided that joining City was the best plan.

Manchester City are planning to capture Major League Soccer teen prodigy Cavan Sullivan. Sullivan signed the largest 'homegrown contract' in MLS history with Philadelphia Union, which includes a clause to facilitate a move to Manchester City. The collaboration between Philadelphia Union and the City Group was a significant factor in Sullivan's decision. Sullivan is expected to begin training with Manchester City in July 2025, with the plan for him to officially join City in 2027 when he turns 18.