Mercedes' Toto Wolff says he is "in two minds" about the prospect of facing off against his old Red Bull foe Christian Horner again if the latter returns to Formula 1.<br>Since his dismissal from Red Bull last July, Horner has been working behind the scenes with groups of investors on the right opportunity to return to the series, seeking a part-ownership that would help him gain a firm foothold ...<a class='more' href='https://www.autosport.com/f1/news/wolff-on-horner-f1-return-hes-broken-a-lot-of-glass/10809861/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=uk'>Keep reading</a>