7 Most Astonishing Secret Football Contract Clauses Ever

5. The Poster Boy Home Ground Clause.

LAVEZZI 57 Dollar Man
2015 Getty Images

Daniel Agger's was a cultured defender who won over 70 caps for Denmark. Agger started and finished his career in Denmark with Danish aces Brondby. Sandwiched in between was a big-money move to Anfield with current UEFA Champions League holders Liverpool.

The defender moved to Liverpool in 2006 and made 175 appearances scoring a very respectable nine goals in the process. Agger rejoined Brondby in 2014 and that's where this particular story gets interesting!

The former Danish international's contract included what was probably a world's first. Under the terms of the three million euro move back to Denmark, a poster of Agger had to be displayed at his home ground for all home matches. Agger, who is well known for his love of tattoo art and is a qualified tattoo artist, probably saw his side-business boom as a result.

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Eddie Ryan hasn't written a bio just yet, but if they had... it would appear here.