Pro Claim FC have pulled off the shock signing of former Stoke striker Sidibe.
Club secretary Max Malik told The Sentinel: "Mama has been a good friend to a lot of the lads for a few years and he has been training with us to keep fit for a few months.
"You can tell the class. He might have been known as a target man in the Premier League but he can run rings around us - and he can certainly hold his own, he loves it.
"We cannot afford to pay him the wages that a top player might expect ... in fact he has to pay us £4 subs."