The role of full-backs in football has dramatically evolved. Traditionally, full-backs were primarily defensive, guarding the flanks against opposing wingers. However, modern football has witnessed a paradigm shift, with full-backs now integral to a team's offensive arsenal. They are expected to support attacks, make overlapping runs, and provide crosses from wide positions. This transformation has been driven by a tactical emphasis on width and the desire to exploit the full breadth of the pitch.

Full-backs today must possess not only defensive prowess but also speed, stamina, and technical skills to contribute to their team's attacking play. They often act as auxiliary wingers, pushing high up the field to offer an additional layer of attack. This requires a high level of tactical understanding and the ability to quickly transition from defense to offense.

The modern full-back must be versatile, able to defend against fast attackers and also initiate and join in on offensive plays. Their dual role has made them one of the most demanding and dynamic positions on the field, reflecting the fluid and ever-changing nature of contemporary football tactics.