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Daniel Agger has pinpointed the moment which 'changed everything' in his career - five years before he eventually left Liverpool.

The Danish centre-back spent eight years at Anfield, making 232 appearances, and became one of the Kop's most popular stars.

But his time on Merseyside was often interrupted by injury, and he was eventually forced to retire at the age of just 31, claiming it was important to "stop while I'm still ahead".

Taking to social media, Agger shared a picture of him challenging for a ball during the Reds' 5-0 pre-season win over Singapore League Select XI in July 2009.

The image depicts Agger falling under the challenge of Noh Alam Sham during the win in Asia, which would lead to him missing the first three months of the 2009/10 season.

Agger - who had played 26 times in the previous campaign, which saw Liverpool finish second - was withdrawn in the 78th minute, and would not be seen again until October after undergoing back surgery.

Despite making 153 subsequent appearances following that surgery, it appears this incident shared by Agger is the one he believes to be the root of the problems which would eventually lead to his early retirement.

Writing on Twitter, Agger said: "This little jump/fall changed everything."