 Tierney established himself as Bolton's first choice left-back before suffering an ankle injury in the club's 1-1 draw with Yeovil Town at the Reebok Stadium meaning a lengthy spell on the sidelines.On 23 April 2015, Tierney announced his retirement from professional football after failing to recover from his ankle injury.Aside from England, Tierney is also eligible to play for the Republic of Ireland national team.