Culbreath's long-term extension is a reflection of his rapid development and the Leverkusen hierarchy's growing trust in his potential to become a key figure for the Rhineland club.
The 18-year-old forward made a real breakthrough in the latter stages of the 2025/26 season, progressing from a promising academy prospect to a genuine first-team option in the Leverkusen attack.
His performances across 16 appearances in the Bundesliga (12), UEFA Champions League (3) and DFB Cup (1) were marked by composure beyond his years, intelligent decision-making in tight spaces, and a willingness to take responsibility in high-pressure moments. The Landstuhl-born talent even scored a Bundesliga debut goal against RB Leipzig.