Former Red Bull Formula 1 chief Christian Horner has given his clearest indication yet that he is keen to return to the series, declaring he has "unfinished business" with F1.
Under Horner's reign, Red Bull achieved two periods of dominance and won eight drivers' titles, four apiece for Verstappen and Sebastian Vettel, as well as six constructors' championships. But last July, the 52-year-old paid the price for a downward slide in performance as part of a deeper political battle behind the scenes at Red Bull, with the brand's Austrian management replacing Horner with Racing Bulls team boss Laurent Mekies.
