Crossing the line: Players perspectives on the leap from junior to senior football

The transition from junior to senior is widely regarded as one of the most critical and challenging stages in the long-term talent development pathway. Despite its career-defining nature, this phase remains underexplored, particularly regarding the challenges faced by promising young players. This study investigated players’ perceptions of the junior-to-senior transition through semi-structured interviews with 20 Portuguese football players: (1) 10 classified as successful players (39.3 ± 11.96 years; 13.4 ± 7.02 professional seasons; 5.8 ± 3.48 career clubs), and (2) 10 classified as unsuccessful (35.6 ± 12.22 years; 2.5 ± 2.59 professional seasons; 2.2 ± 2.14 career clubs). Success was defined as completing at least one full season in a top-tier European professional league. Interview questions addressed priorities in sporting experiences, psychosocial factors, and physical attributes. Interviews were audio-recorded, transcribed, and thematically analysed. Findings suggest that in a performance-driven sporting context, successful transition requires ambition, discipline, resilience, and self-reflection. Outcomes are strongly shaped by coach-player relationships, competitive environment, and the perceived importance of academic education. Persistent barriers include unrealistic expectations, external pressures, limited playing time, and the overemphasis on biological maturation and relative age effects. The influence of close social networks was found to be ambivalent, highlighting the need for gradual, personalized transition approaches supported by conscious and adaptive leadership.