A beaming smile behind the mask says it all for Russell

George Russell broke out into a beaming smile that even his mask couldn't hide when he tried out for size his Mercedes ride for next weekend's Sakhir Grand Prix.

Stepping up from perhaps the slowest car on the grid to F1's fastest contender is a daunting task, but Russell will no doubt make the most of the unexpected but amazing opportunity to showcase his undisputable talent.

And who knows, this weekend's one-off could be the harbinger of a full-time involvement with the mighty Mercedes team after 2021, a fantastic warm up of sorts for the 22-year-old charger.