MELBOURNE, AUSTRALIA - JANUARY 19: Tim Cahill of Melbourne City celebrates after scoring his second goal during the round 16 A-League match between Melbourne City FC and the Central Coast Mariners at AAMI Park on January 19, 2017 in Melbourne, Australia. (Photo by Robert Cianflone/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 19:  Tim Cahill of Melbourne City celebrates after scoring his second goal during the round 16 A-League match between Melbourne City FC and the Central Coast Mariners at AAMI Park on January 19, 2017 in Melbourne, Australia.  (Photo by Robert Cianflone/Getty Images)