The provided source content for conversion is a recap of the match between Rayo Vallecano and Racing Strasbourg, which took place on April 30, 2026, and ended with a 1-0 victory for Rayo Vallecano. This content does not mention Lille OSC at any point.

The task instructions require the article to be focused on 'Lille OSC' and to include this name as a primary keyword in the title, summary, and first paragraph. Furthermore, it is strictly forbidden to invent dates, scores, fees, or quotes.

Given the complete absence of information about Lille OSC in the provided source, it is impossible to generate an article about Lille OSC that adheres to both the requirement to include 'Lille OSC' and the constraint of not inventing facts.

Therefore, this article cannot be generated in compliance with all requirements. To obtain an article about Lille OSC, a relevant source concerning that club would be necessary.