SPICE Girl Geri Halliwell’s F1 boss husband will face a D-Day grilling on Friday amid claims of a vicious power struggle. Red Bull Racing chief Christian Horner is due to be probed by a lawyer over shock allegations of “inappropriate behaviour”. An F1 source told The Sun: “Christian had concerns about her conduct and made it clear he was unhappy. One F1 source claimed a deliberate attempt was being made to destabilise Horner. Wife Geri, 51, is standing by Horner, 50, who denies the allegations. Another source said: “It’s an awkward situation but it’s unavoidable until the air is cleared and this matter is resolved.”. Red Bull is said to want the issue sorted out before the first race meeting of the new F1 season, which starts in Bahrain at the end of the month. Since Horner took over as team principal in 2005, Red Bull has won seven F1 world drivers’ championships and six world constructors’ titles. Red Bull Racing referred all inquiries to its Austrian HQ yesterday.

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