Antonio Brown -- NFL Star Ordered to Fork Over Money to Baby Mama

Pittsburgh Steelers wide receiver Antonio Brown can put his new $42-million-contract to good use and finally pay his baby mama all the money he owes her ... which is what a judge has ordered him to to.

In legal docs filed in Florida, Shameika Brailsford -- who had a child with Brown back in 2007 -- claimed the NFL star failed to cough up child support for the last eight months ... to the tune of $6,000. Despite Brown's big payday, his child support obligation is only $750 a month

After reviewing the case, a judge came back last month and sided with Shameika. Brown was ordered to fork over the cash. He was also ordered to follow the custody rules ... i.e. let Shameika see her kid.

As TMZ first reported, Brailsford claimed back in January that AB took their kid to live in Pittsburgh without her permission and was preventing her from making contact.

A permanent solution for custody has yet to be reached.