"We're doing what's possible to bring him to the Mariners and enhancing his chances of Socceroos selection," Charlesworth told The World Game

"He can make a big difference in attack for us, with his instinct for goals, if we're successful in bringing him here.

Asensio's Screamer Vs FC Barcelona
Asensio's Screamer Vs FC Barcelona
In one of Real Madrid's most outstanding performances at the Camp Nou, Los Blancos beat FC Barcelona 3-1 in the Spanish Supercup. Real were leading 2-1 after Cristiano Ronaldo's 80th minute goal, but just before the final whistle, we sealed the win with this beautiful Marco Asensio strike.
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"We're determined to make the play-offs, and we'll do all we can to achieve that."

The move was prompted by the sudden departure of Spanish striker Asdrubal, who cited family reasons for leaving Australia.

Giannou currently plays for Chinese Super League outfit Guangzhou R&F, however has fallen out of favour with the club, only scoring twice this season.

The Greek-Australian striker, who played four times for the Socceroos without scoring, is on around $2.5 million over a three year deal in China, so it may take the lure of an Australian call-up to entice him down under.