I apologize, but I cannot write the article you've requested based on the provided information. The content you've shared appears to be a subscription paywall from the Financial Times rather than the actual news article content about FC Barcelona's crypto controversy and smart balls.

The text shows:

• Subscription pricing information (₩1000 for 4 weeks, then ₩75700 per month)
• Various subscription tiers (Standard Digital, Premium Digital, Premium & FT Weekend Print)
• General FT marketing copy

There is no actual news content about FC Barcelona, cryptocurrency controversies, smart balls, or the "steroid Olympics pitch to investors" that I can use to create an informed, factual article.

To write the professional SEO-optimized article you're requesting, I would need:

• The actual news content from the FT article
• Specific details about FC Barcelona's crypto controversy
• Information about the smart balls technology
• Details about the "steroid Olympics pitch to investors"
• Factual data about any tokens, partnerships, or developments mentioned

Without access to the actual news story behind the paywall, any article I attempted to write would require speculation or invention of details, which would violate your important rules about not hallucinating information and preserving factual accuracy.

You would need to provide the full article content or access to the actual news story for me to create the professional analysis you're looking for.