Costa has established himself as an important figure for Porto and Portugal. The report says his international performances at the World Cup increased attention around him, adding momentum to a profile already built in European football.
At 26, Costa would offer Chelsea both present quality and room for a long-term solution. His distribution, composure in possession and experience in high-pressure matches fit the demands of a team expected to build from the back. The club’s interest therefore appears to be about more than replacing a short-term weakness; it would represent an attempt to settle the position for several seasons.
The reported €60 million clause gives Porto limited protection if Chelsea decide to activate it. A payment of that size would remove the need for a prolonged fee negotiation, although personal terms and the player’s willingness to move would still matter.
For Chelsea, the financial risk is obvious. A goalkeeper signing at that level must deliver consistency immediately, particularly after a disappointing campaign and a season outside European competition. The club would be paying for reliability as much as potential.
The alternative would be to negotiate different terms with Porto, potentially lowering the upfront cost but creating a more complicated deal. That decision will reveal how strongly Chelsea believe Costa can transform the position.
The next transfer window should clarify whether this interest becomes a formal offer. Chelsea must choose between committing to the clause or exploring a broader goalkeeper market, while Porto will expect any approach to reflect Costa’s importance. For now, the move remains a reported possibility rather than a completed transfer.