Valtteri Bottas continues to work hard during summer break

We've seen Daniel Ricciardo drinking shoey's in Las Vegas, Nico Hulkenberg messing around in hotels and Lewis Hamilton driving different sorts of cars. But Valtteri Bottas is keeping a keen eye on work.

The Finn has been posting pictures on his Twitter of him working hard and maintaining fitness. You can't knock his work ethic.

If it wasn't for mechanical issues and poor luck, Bottas would be much higher up the championship leaderboard. And perhaps it is this which gives him the motivation to improve his own fitness.