Carreras offers more than conventional attacking width. The 23-year-old can operate as a left-back or step inside as a left-sided centre-back, matching the defensive flexibility Chelsea are seeking.
That profile would give the Blues another option in systems that switch between a back four and a back three. It also explains the reported interest from Xabi Alonso, who knows Carreras from his time at Madrid and is believed to appreciate his ability to perform multiple roles.
Carreras returned to Madrid after leaving Benfica, bringing La Liga and Champions League experience. He made 40 appearances last season, scoring twice and providing three assists, while earning attention for his defensive display against Barcelona.
Madrid reportedly value Carreras between £42m and £50m, reflecting the £42m investment required to bring him back from Benfica last summer. Chelsea’s initial bid falls well below that range, leaving negotiations with plenty of ground to cover.
The timing is significant. Cucurella is viewed as Madrid’s first-choice left-back, which could reduce Carreras’ minutes. Yet the defender reportedly wants to remain in Spain and compete for his place rather than force a move.
For Chelsea, that creates two hurdles: Madrid’s price and the player’s preference. Other options, including Pep Chavarria and Alejandro Grimaldo, have been linked with the role, but neither appears to offer a straightforward solution.
Chelsea’s next move will show how strongly they value Carreras’ versatility. A bid closer to Madrid’s valuation could test the defender’s resolve, while a firm refusal may push the club towards an alternative before the transfer window closes.