McLaren chief Andrea Stella moved to rubbish the suggestion that Rob Marshall's impending arrival from Red Bull is linked to a potential engine deal between the two teams.
Last week it was announced that Marshall, who has worked for Red Bull for 17 years, will be joining McLaren at the start of next year. He will become the team's technical director of engineering and design as part of a restructuring of top staff at Woking.
The timing of the move has raised some suggestions that there might be more to it than simply a member of staff moving from one team to another.
