McLaren's already uphill struggle to win this year's drivers' and constructors' titles has become harder still in the wake of Lewis Hamilton's latest Twitter faux pas, suggesting increasing tensions within the team.
"Just noticed @jensonbutton unfollowed, that's a shame... I thought we respected one another but clearly he doesn't," he told his 1,000,000-plus followers.
When Hamilton realised that Button had, in fact, never followed him, he rowed back on his earlier comments: "My bad. just found out Jenson never followed me. Don't blame him!" (Daily Telegraph, London)