On 21 August 2018, on his 32nd birthday, Bolt started training with Australian club Central Coast Mariners of the A-League. He made his friendly debut for the club as a substitute on 31 August 2018 against a Central Coast Select team, made up of players playing in the local area. On 12 October, he started in a friendly against amateur club Macarthur South West United and scored two goals, both in the second half, with his goal celebration featuring his signature “To Di World” pose.