Grimaldo is expected to join the La Liga club in a deal worth around 25 million euros, prompting Leverkusen to step up their search for a new option on the left side of defence.
According to reports from Germany, Guerreiro is firmly on the Bundesliga club's shortlist. The 32-year-old is currently available as a free agent after leaving Bayern Munich, making him an attractive option with no transfer fee required. His experience at the highest level, combined with his attacking quality and reliable left foot, makes him a natural candidate to fill the gap left by Grimaldo.
However, Leverkusen's new head coach, Carles Martínez, is believed to favour a different profile. The Spaniard is reportedly looking for a younger and quicker left-back who can add greater pace and energy to the team.
One player who fits that description is Arsene Kouassi of French club FC Lorient. The Burkina Faso international has also attracted interest from Bundesliga rivals VfB Stuttgart and Eintracht Frankfurt.
Kouassi already shares an international partnership with Leverkusen defender Edmond Tapsoba, a connection that could help him settle quickly if a move is completed. The 20-year-old is expected to cost around 20 million euros.
Michael Olise has been named Bayern Munich's Player of the Season for the 2025/26 campaign after an outstanding year that saw him become one of the Bundesliga club's most influential attackers.
Arsenal have completed the permanent signing of defender Piero Hincapie after the Ecuador international spent last season on loan from Bundesliga club Bayer Leverkusen.
Deniz Undav has fully embraced his role as Germany's impact substitute at the 2026 FIFA World Cup, insisting the team's success matters more than whether he starts or comes off the bench.
The growing connection between Jamal Musiala and Florian Wirtz has become one of Germany's most promising attacking developments at the FIFA World Cup 2026.
