Lewis Hamilton, Romain Grosjean, Singapore, 2019 Link to this image full-size: https://www.racefans.net/2019/10/21/grosjean-not-convinced-by-hamiltons-plant-based-diet/motor-racing-formula-one-world-championship-singapore-grand-prix-preparation-day-singapore-singapore-178/Lewis Hamilton, Romain Grosjean, Singapore, 2019Advert | Become a RaceFans supporter and go ad-freeLewis Hamilton,Romain Grosjean, Singapore, 2019