First, I need to write an original article for the keyword "Diego Costa Transfer Fee To Chelsea". The context provided includes various phrases and links, but it seems mostly promotional and not directly relevant to the article except for the keyword itself. I should focus on providing accurate and historical information about Diego Costa's transfer to Chelsea, including the fee. The requirements specify: - 600 to 900 words. - Natural headings. - Avoid unsupported claims. - Do not mention AI generation. - Use safe HTML tags: h2, h3, p, ul, ol, li, strong, em. I need to create a factual article. Diego Costa moved from Atlético Madrid to Chelsea in 2014. The transfer fee was around £32 million (reported as €38 million or $50 million at the time). I'll structure the article with headings that cover the transfer fee, the negotiation, his impact at Chelsea, and legacy. I'll start with an introduction, then use h2 for main sections, and h3 for subsections if needed. Ensure it's between 600-900 words. Avoid unsupported claims, so I'll use well-known facts from reputable sources like BBC or ESPN. Outline: - Introduction: Brief on Diego Costa's move to Chelsea. - Section 1: The Transfer Fee Breakdown – amount, contract details. - Section 2: How the Deal Happened – negotiation between clubs and player. - Section 3: Impact on Chelsea – goals, trophies, style. - Section 4: Legacy and Aftermath – later career, comparison. I'll incorporate the keyword naturally in the text. Now, write the article in HTML. Since it's for SEO and factual, I'll use paragraphs and lists where appropriate. Start writing: ```html

Introduction to Diego Costa's Chelsea Transfer

In the summer of 2014, Chelsea secured the signing of Diego Costa from Atlético Madrid, a move that would reshape their attack and lead to immediate success. The transfer fee, which became a talking point among fans and analysts, was set at around £32 million, reflecting Costa's status as one of Europe's most formidable strikers.

The Transfer Fee: What Chelsea Paid for Diego Costa

Diego Costa's transfer fee to Chelsea was officially reported as £32 million, with some sources citing €38 million. This fee was activated by a buyout clause in his contract with Atlético Madrid, allowing Chelsea to bypass negotiations and directly secure the player. Given Costa's prolific form in La Liga and his role in Atlético's 2013-14 title win, this fee was considered fair value at the time.

Key details of the fee include:

This upfront payment made Costa one of Chelsea's most expensive signings at that point, but it quickly proved to be a bargain given his impact.

How the Transfer Unfolded

The transfer saga began in early 2014, with Chelsea manager José Mourinho identified Costa as a target to strengthen the frontline. Atlético Madrid initially resisted, but the buyout clause made the deal inevitable once Chelsea activated it. Costa expressed his desire to join Chelsea, leading to a smooth transition after the 2014 World Cup.

Key figures in the deal:

The transfer was finalized on July 15, 2014, with Chelsea paying the full fee upfront, avoiding any protracted negotiations.

Diego Costa's Impact at Stamford Bridge

Costa's arrival transformed Chelsea's attack. In his first season (2014-15), he scored 20 goals in the Premier League