The eight-time Olympic track gold medallist remains in Australia on trial for the Central Coast Mariners in the A-League but received an offer earlier in the week to play for Valletta FC and spearhead their Champions League aspirations.
"You need to talk to them regularly to just make sure we're all focused as a club on this first fixture".
"I haven't read that and I haven't been involved in all that", Mulvey said of the approach from Malta. And even if he doesn't, his continued pursuit of a career - he's also turned down an offer for a two-year contract from Valletta FC in Malta - means he should indeed be listed in the game as a free agent.
Australia's domestic A-League season starts this weekend, with the Mariners in action on Sunday away to Brisbane Roar.
Former Socceroos coach Ange Postecoglou has also cast doubt on Bolt's hopes of earning an A-League contract at the age of 32.
Club chief executive Shaun Mielekamp said this week the Jamaican "will continue his indefinite training period. until any further notice".
Now while it may seem incredibly fanciful that Usain Bolt - fastest man in the world and Olympic gold medalist - could actually feature in Federation Internationale de Football Association, it is not fanciful at all according to the makers of the game EA Sports Canada.
Asked if he found it disrespectful that Bolt thought he could play in the A-League, Babbel said: "If I would be a player from the Mariners that would be unusual for me because I'm doing this for 20 years, 25 years".
"He's been here for a couple of months now, so everywhere we go with Usain, everyone's talking about him", Simon said.
Before joining the Mariners, he trained with German giants Borussia Dortmund, as well as Mamelodi Sundowns in South Africa and Stromsgodset in Norway.