Christian Horner returned to the F1 grid this morning after sexually suggestive WhatsApps he allegedly sent to a female colleague were leaked to the press yesterday afternoon . The Red Bull team principle was cleared of an allegation of “inappropriate behaviour” towards a woman on Wednesday after a three-week internal investigation . Horner responded with a firm statement and said: “I won’t comment on anonymous speculation, but to reiterate, I have always denied the allegations”