Former Caltex Socceroos midfielder is coming out of retirement to play in the FFA Cup on Wednesday night.
Foster, who made 29 appearances for Australia, has signed to play for Albion Park City Football Club for their clash against Coniston FC.
City play in the Illawarra Community League and will take on the highly rated Illawarra Premier League outfit at Kembla Grange's Ian McLennan Park.
"For those who love the game, we are always capable of squeezing in time to play football," Foster said recently in the build-up to Wednesday’s clash.
"The chance to pull on the boots and play again is always worthwhile as it keeps us going as ex-players - it's like putting fuel in the tank."
Foster, who played a leading role in the successful campaign to free Hakeem Al-Araibi is using the match to raise money and awareness for the charity, Mums 4 Refugees.
For every minute that Foster plays in the match, $20 will be donated to the charity.
Foster, 49, played for the Socceroos between 1996 and 2000 and his 16-year playing career saw him play for clubs such as Portsmouth and Crystal Palace, before finishing up at Northern Spirit in the NSL.