Doncaster Rovers have been relegated from the Sky Bet Championship following their 1-0 defeat at Leicester City.
Paul Dickov's side began the day just above the bottom three, one point clear of the drop, but with an inferior goal difference to Birmingham City.
And with Birmingham battling back from 2-0 down to draw 2-2 at Bolton Wanderers, Doncaster's failure to pick up a point at the King Power Stadium means they have made an immediate return to League 1 after winning promotion 12 months ago.
They'll join Yeovil Town and Barnsley in the third tier for the 2014/15 season.
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