Arsenal ready €70m push for Sporting defender Ousmane Diomandé

Arsenal F.C. are preparing a major summer move for Ivory Coast defender Ousmane Diomandé, despite the centre-back having only recently extended his contract with Sporting CP, according to Portuguese reports.

The defender’s future in Lisbon is drawing growing attention across Europe, with Portuguese outlet Record reporting that Arsenal are willing to spend more than €70m to bring the 20-year-old to England.

The reported interest comes shortly after Diomandé committed his long-term future to Sporting, underlining the scale of Arsenal’s intent ahead of the next transfer window.

Diomandé has continued to establish himself as a key defensive figure this season. He has made 16 appearances in all competitions for the Portuguese side and scored once, contributing to Sporting’s defensive stability while enhancing his reputation as one of Europe’s most promising young centre-backs.

Before moving to Portugal, the defender developed his professional profile in Denmark with FC Midtjylland.

His progression since arriving in Lisbon has been rapid, earning him international recognition and sustained interest from elite clubs monitoring defensive reinforcements.

Sporting secured Diomandé on a contract that runs until June 2030, signalling their desire to retain the player amid increasing transfer speculation.

His current estimated market valuation stands at €45m, according to Transfermarkt, reflecting both his age and his upward trajectory.

Financial details indicate the defender earns €580,000, further highlighting Sporting’s investment in his long-term development.

The renewed transfer attention illustrates how quickly Diomandé’s stock has risen in European football.

While Sporting remain protected by a lengthy contract, Arsenal’s reported willingness to exceed €70m suggests the defender could become one of the most closely watched names in the upcoming market cycle.