In Round 24 of the 2013, Brooks made his NRL debut for the Wests Tigers against the St. George Illawarra Dragons. Although the Wests Tigers had exceeded their second tier salary cap, Brooks was given a special dispensation to play as neither team could make the semi-finals. Brooks scored a try and was awarded Man of the Match in the Tigers 34-16 victory, in what was described as, "a stunning NRL debut. " The salary cap prevented Brooks from playing in any further games that year. At the end of the year, Brooks was named at halfback in the 2013 NYC Team of the Year.