Robbie returned home to Newcastle in 2012 after spending three seasons with the Melbourne Storm. Injury disrupted the first half of the 2012 season for the tall, athletic forward. Given a spot in the first grade team in round 19, Robbie has not looked back, finishing his first season with the Knights having made eight straight appearances. Robbie juggles his playing duties with studying civil engineering at the University of Newcastle. Rochow re-signed with the Knights in May, extending his contract with the Club until 2016.