RB Leipzig has set its sights on RCD Mallorca’s Samu Costa as a potential summer signing, adding the Portuguese midfielder to a growing list of targets as the Bundesliga transfer window approaches its July 1 opening date.

Costa, a 25-year-old defensive midfielder, has quietly built himself into one of La Liga’s more reliable engine-room operators.

What Costa brings to the table

In the 2025/26 La Liga season, Costa has logged 34 appearances, chipping in with 7 goals and 2 assists.

Standing 1.85 meters tall and left-footed, Costa offers versatility across multiple midfield roles. He can sit deep and shield the back line or push forward into a more traditional central midfield position.

Costa joined Mallorca from Almeria in August 2023, and he has racked up over 100 appearances for the Balearic Island club since arriving, establishing himself as a regular starter and earning caps for the Portuguese national team along the way.

His current market valuation sits at approximately $15.4M (around €14.3M). His contract with Mallorca runs through June 2028, meaning the Spanish side holds decent leverage in any negotiation.

Leipzig’s Portuguese pipeline

Costa’s estimated gross annual salary of €1.25M at Mallorca suggests significant room for Leipzig to offer a meaningful pay raise as part of any transfer package.

Leipzig’s summer 2026 transfer strategy appears to be primarily focused on other areas. The club has been working through loan returns and has identified different positional priorities in their recruitment planning. Costa’s name has surfaced in the scouting conversation, but no official bid or formal negotiation has been documented in Bundesliga transfer records.

What this means for both clubs

For Mallorca, Costa is a key player with two years remaining on his deal. If a serious bid arrives, they can either negotiate from a position of relative strength or simply decline and keep one of their best performers.

The Bundesliga transfer window runs from July 1 through August 31, 2026, giving both sides a two-month corridor to explore whether mutual interest exists.