Barcelona's full-back positions have been a topic of debate this season, and the summer transfer window could bring decisive moves. One intriguing option emerging for the Blaugrana is a familiar face: former La Masia graduate Alejandro Grimaldo.

The Spanish international has flourished into a key player for Bundesliga champions Bayer Leverkusen, but a return to Spain has long been on his radar. With just one year remaining on his contract, reports indicate Leverkusen could be willing to part with the 30-year-old for a bargain fee of just €12 million this summer to avoid losing him for free next year.

This potential deal adds a fascinating layer to Barcelona's defensive puzzle. The club had previously agreed to personal terms with Grimaldo last summer but ultimately passed on a €15 million move. Now, with the price potentially lower, the calculus may change, especially with competition from Italian giants Juventus and AC Milan.

However, Grimaldo's path to the Camp Nou is not straightforward. Barcelona's primary defensive focus appears to be a new central defender, which could see current option Gerard Martin revert to his natural left-back role. Furthermore, the club's priority is to secure Joao Cancelo's permanent stay after his loan, though negotiations with Al-Hilal—who reportedly want €15 million—are challenging.

For now, Grimaldo represents a high-quality, cost-effective contingency plan. His signing would make the most sense if the Cancelo deal falls through or if there's an unexpected departure, as the left-back spot is currently occupied by the talented Alejandro Balde. As the summer window heats up, Barcelona's strategy on the flanks will be one to watch closely.