We often hear that the number one rule in motorsport is to not take out your team mate in a race.
But I was curious to know just how many times this has happened. There's three incidents I can remember, but maybe there's some I'm missing or have forgotten about.
MotoGP - Dani Pedrosa and Nicky Hayden, Estoril 2006.
I remember this one vividly, mostly for Nicky Hayden's reaction after it happened. Pedrosa collided with Hayden at Estoril in 2006. At the time, Nicky Hayden was leading the championship with two races left to go, seemingly handing the championship to Valentino Rossi on a platter.
F1 - Sebastian Vettel and Mark Webber, Istanbul 2010
Perhaps the one most people will remember the best, when Red Bull imploded at Turkey. The fall out was pretty spectacular too, with Red Bull seemingly trying to lay the blame at Mark Webber's door more than Vettel's.
And who can forget this photo in a subsequent press release?
BTCC - Matt Neal and Gordon Shedden, Oulton Park 2011
Not as high profile as the other two, but still pretty funny. Team mates colliding at the last corner of the last lap, when on for a certain one-two. 'The Hondas do a Red Bull!'
Then there was IndyCar at Detroit this year, when two Ganassi cars and two Penske cars managed to collide in the same race.
So, can anyone think of any others?