 On 6 June 2009, Eardley made his first appearance in a World Cup match, as Wales beat Azerbaijan 1–0 in their 2010 qualifier at the Tofik Bakhramov Stadium in Baku.He failed to win a cap following Chris Coleman's appointment as manager in January 2012; he had been called up by Coleman in 2013 but was forced to pull out due to the first of one of the numerous injuries that afflicted him during his time at Birmingham.Speaking in December 2007, Eardley told "FourFourTwo" magazine that he felt his strength was his attacking ability, though he needed to improve on his heading skills.