Luton Town signed Barnsley defender Mads Andersen on Monday for an undisclosed fee, furthering their connection with the Oakwell club.
Since 2013, 19 players have represented both teams, with one of them going on to manage the Hatters too.
To find out exactly who has played for the Hatters and Tykes, see the gallery below.
To find out exactly who has played for the Hatters and Tykes, see the gallery below.
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