It's modern light hearted parlance though.
For example when Liverpool play Everton this season I'm sure some wags will term it The Benitez Derby, Forest v Derby is often called the Brian Clough Derby and only a few hours ago someone said 'Lindgaard Derby' when West Ham played Man Utd.
Me? I've always liked the Dockyard Derby as the link is obvious, there's a lot of ports (Dover v Falmouth) and every game we play against them seems to be played like a derby.
It's all about opinions though.
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