John Booth is returning to Formula 1.
At the end of last season, the Manor founder and boss left the F1 backmarker, with Stephen Fitzpatrick having rescued the team following the Marussia collapse.
Together with Graeme Lowdon, Booth re-emerged with a Le Mans team foray for 2016 but it was announced on Tuesday that he will now start work "on a consultancy basis" with Red Bull-owned Toro Rosso.
"I am looking forward to getting started and working with Franz [Tost] and the team this weekend in Sochi," he said.
Booth will have the role of 'director of racing', starting in Russia this weekend.
