Usain Bolt is set to trial at the Central Coast Mariners, but would his signing be worth it for the A-League?

France forward Kylian Mbappe signs autographs during an official reception at the Elysee Presidential Palace in Paris, Monday, July 16, 2018. France is readying to welcome home the national soccer team for a parade down the Champs-Elysees, where tens of thousands thronged after the team's 4-2 victory over Croatia Sunday.

Croatia national soccer team members are welcomed with their national flags waved upon arrival in Zagreb, Croatia, Monday, July 16, 2018. Euphoria gave way to a mixture of disappointment and pride for Croatia fans after their national team lost to France in its first ever World Cup final.

Supporters of the Croatian national soccer team light torches a celebration in Zagreb, Croatia, Monday, July 16, 2018. Euphoria gave way to a mixture of disappointment and pride for Croatia fans after their national team lost to France in its first ever World Cup final.

The crowd gathers on the Champs-Elysees avenue to welcome the French soccer team for a parade a day after the French team victory in the soccer World Cup, in Paris, Monday, July 16, 2018. France is readying to welcome home the national soccer team for a parade down the Champs-Elysees, where tens of thousands thronged after the team's 4-2 victory over Croatia Sunday.

Croatia's player Luka Modric celebrates upon arrival in Zagreb, Croatia, Monday, July 16, 2018. Euphoria gave way to a mixture of disappointment and pride for Croatia fans after their national team lost to France in its first ever World Cup final.

Beaten World Cup finalists Croatia return home to a rapturous welcome as Paris salutes the victorious French team.

The Socceroos legend announces his retirement from international football after scoring 50 goals in 107 appearances for Australia.

The former superstar sprinter is set to undertake a trial with the Mariners ahead of a possible shock A-League move.

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