On 11 March 2011, Melbourne Victory ended weeks of speculation by officially confirming that they had indeed signed Rojas, securing him on a two-year deal.

On 8 October 2011, Rojas made his debut for Melbourne Victory FC in the A-League season opener against Sydney FC.
It would not be until the following 2012–13 season, however, that he would score his first Melbourne Victory goal; it came in the Victory's 2–1 loss to crosstown rivals Melbourne Heart, after receiving a cross from Archie Thompson.
His second Melbourne Victory goal came in the Victory's 2–1 win against Adelaide United two weeks later.
Rojas scored goal number 15 for season 2012–13 on 31 March 2013 against Wellington Phoenix in a 2–3 win.

At the A-League end of season awards for the 2012–13 season, Rojas won both the Johnny Warren Medal and the A-League Young Footballer of the Year awards.

On 18 April 2013, Rojas quit Melbourne Victory to pursue a career in Europe.
His contract with Melbourne expired on 30 April 2013.
On 11 March 2011, Melbourne Victory ended weeks of speculation by officially confirming that they had indeed signed Rojas, securing him on a two-year deal.
On 8 October 2011, Rojas made his debut for Melbourne Victory FC in the A-League season opener against Sydney FC. It would not be until the following 2012–13 season, however, that he would score his first Melbourne Victory goal; it came in the Victory's 2–1 loss to crosstown rivals Melbourne Heart, after receiving a cross from Archie Thompson. His second Melbourne Victory goal came in the Victory's 2–1 win against Adelaide United two weeks later. Rojas scored goal number 15 for season 2012–13 on 31 March 2013 against Wellington Phoenix in a 2–3 win.
At the A-League end of season awards for the 2012–13 season, Rojas won both the Johnny Warren Medal and the A-League Young Footballer of the Year awards.
On 18 April 2013, Rojas quit Melbourne Victory to pursue a career in Europe. His contract with Melbourne expired on 30 April 2013.
Marco Rojas