From Wikipedia: Davies signed a professional scholarship with Reading, aged 16, where he captained the youth team coached by Brendan Rodgers. He was also capped for the Wales Under-17, 18 and 19 team.
Despite appearing regularly for the Reading reserve team, Davies was forced to retire from professional football in 2004, at the age of 19, due to injury.
In 2004, Davies started at Loughborough University, where he studied Sport Science, while undertaking his UEFA coaching licences and various youth coaching roles. Davies graduated with 1st class honours in 2007.
In 2007, Davies then went on to be a youth coach in New Zealand for three years. Most notably with Hawke’s Bay United who were coached by Bobby and Jonathan Gould.
Upon his return in 2010, aged 25, Davies was recruited as an assistant coach by Brendan Rodgers, who was the newly appointed Swansea City manager. In their first season Swansea City were promoted to the Premier League.
Davies moved with Rodgers to Liverpool as one of his assistants in June 2012. In January 2014, Davies was accepted onto the UEFA Pro Licence Course and completed his UEFA Pro Licence in 2016. Davies left his position at Liverpool on 8 October 2015.
Davies rejoined Reading on 1 January 2016 as their first team coach. At 30-years-old, Davies became the youngest first team coach in the club’s history. He moved to Celtic during the 2016 close season, becoming assistant manager to Rodgers.