Winter signing is not an option

Barcelona's defensive vulnerabilities, particularly at fullback, have been exposed in recent losses; the club needs reinforcements but winter signings are constrained by financial rules.

Barcelona have made a solid start under Flick despite setbacks in Paris and the Clásico, but their defensive line has proven vulnerable without key players. The fullback position is particularly problematic. The team fielded Cancelo and Espart in the opening matches, but both are makeshift solutions.

At Atlético Madrid, Flick was forced to deploy Brian Fariñas as an emergency option after injuries to Espart and Koundé, with Eric and Christensen also unavailable.

Barcelona's attacking style demands fullbacks who are quick, capable of supporting the offense, and able to recover defensively at pace. Cancelo brings experience and tactical discipline but was not envisioned as a long-term starter. Espart has been a promising discovery but is now sidelined by injury. Balde, who was a regular last season, appears to have fallen out of favour.

The article argues that Barcelona cannot afford to wait until summer and must address the fullback shortage, though winter transfers are not a realistic option given the club's financial constraints.