Luke signed for the Hoops in November 2013 from north city rivals Bohemians for whom he had joined in 2011. He made his League of Ireland debut at Bohs in February 2012 playing against Portadown in the Setanta Cup.
In 2014, Luke played for the Irish Home-based Under 21 team and was further recognised with a call up for the Republic’s Under 21 squad for the qualifying game against Montenegro at Tallaght Stadium.
He scored his first goal in senior football in Rovers’ win away to Galway in June 2015 but the following April disaster struck. Ten minutes into a 2-0 defeat at Turner’s Cross, Luke tore his cruciate and lateral ligament, which ruled him out for the remainder of the season.