MEXICO CITY, Oct 29 (Reuters) - Red Bull boss Christian Horner hailed the return of the Daniel Ricciardo of old on Sunday as the Australian raced to AlphaTauri's best result of the season at the Mexico City Grand Prix. "You couldn't fail to be impressed by Daniel this weekend," Horner told Sky Sports television. "I think fighting a Mercedes in an AlphaTauri for their best result of the year was a great performance. Ricciardo had qualified fourth on Saturday at the Autodromo Hermanos Rodriguez and told reporters that performance was no fluke. He could have had it today but it wasn't to be but great to see Daniel looking like his old self."

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Persons: Red Bull, Christian Horner, Daniel Ricciardo, Red Bull's Sergio Perez, Daniel, Horner, he's, Daniel we're, Ricciardo, Autodromo Hermanos Rodriguez, Checo, Perez, Kevin Magnussen, Haas, Alan Baldwin, Michael Perry Organizations: MEXICO CITY, Mexico City Grand Prix, Sky Sports, Autodromo Hermanos, Renault, McLaren, Red Bull, Thomson Locations: MEXICO, Mexico, London