Motor racing-Mercedes agree to let F1 engine expert join Red Bull in May

FILE PHOTO: F1 Formula One - Mercedes 2018 Car Launch - Silverstone Circuit, Towcester, Britain - February 22, 2018 General view of the new Mercedes F1 car during the launch Action Images via Reuters/Matthew Childs

LONDON (Reuters) - Formula One champions Mercedes have agreed to let engine expert Ben Hodgkinson move to rivals Red Bull in May, they announced on Friday.

The signing was announced by Red Bull last April without a starting date being set.