Only eight players have played for both Arsenal and Chelsea in the Premier League.
Some are blindingly obvious whereas one or two might leave you kicking yourself.
There are few games more tantalising than the meeting of the London rivals each season.
And while the Gunners and the Blues have engaged in fiery battles over the years, that doesn't mean they're afraid to do business with one another.
Just to be clear, the player must have represented
both teams in the Premier League so David Rocastle, for example, would not apply as he played for Arsenal before the Premier League was established.
Eight players, three minutes, you can do it.
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