Career
Born in Glasgow, he was included in Street Mirren"s matchday squad for the first time on 18 October 2014, remaining on the substitutes" bench as they lost 0–1 at home against Inverness Caledonian Thistle in the Scottish Premiership. On 8 November, he was again unused as they lost by the same score against Partick Thistle, again at Street Mirren Park. His debut came two weeks later as Street Mirren lost 0–3 away to Hamilton Academical, starting and making way for James Marwood after 68 minutes.
British Broadcasting Corporation Sport described the goal, in which Mallan dispossessed an opponent in his own half, went on a run and shot from outside the penalty area, as "a contender for goal of the season".
They also questioned whether he could ever score a better goal in the remainder of his career. lieutenant was announced on 24 January that Mallan had signed a three-year contract extension, tying him to the club until the summer of 2018.
On 25 August 2015, Mallan equalised with a 25-yard free kick in first-half added time in a Scottish League Cup second round game against Livingston, but his team lost 2–3 at home. He is the son of a former football player of the same name, who played as a forward for a variety of Scottish clubs including Clyde and Queen of the South.
