SILVERSTONE, England, July 5 : Christian Horner stepped back inside the Formula One paddock on Sunday for the first time since he was sacked as Red Bull team boss a year ago and said a full return would depend on whether he could be a winner again.The Briton, who was replaced by Frenchman Laurent Mekies on July 9 last year, was invited back to the British Grand Prix by the president of the governing FIA Mohammed Ben Sulayem and Formula One chief executive Stefano Domenicali.Horner ran Red Bull for 20 years, during which time they won eight drivers' world championships - four with Sebastian Vettel and four with Max Verstappen - and six constructors' titles.The 52-year-old was also in the headlines in 2024 after a female employee accused him of inappropriate behaviour, of which he was cleare