Former NFL running back Clinton Portis used bad checks to pay back $170,000 he owes to the Borgata casino in Atlantic City, according to a Deadspin report.

Deadspin obtained a Borgata filing in which the casino said Portis gave it checks that bounced. The casino had advanced Portis the money, according to the filing. So Portis still owes the Borgata that money.

Here's more from Deadspin:

That filing ... seeks to prevent Portis from having his Borgata debt "discharged" in bankruptcy--that is, forgiven.

On Jan. 17, 2011, according to the complaint, Portis applied for and received a line of credit at the Borgata. Over the course of that night, Portis was extended $200,000. Over the next 10 months, Portis successfully repaid $30,000. He also attempted to repay the remainder with six checks that were all refused by the bank because Portis had insufficient funds.

The Borgata's complaint argues that Portis knew he did not have the money to repay his debts when he received the line of credit, which would make it non-dischargeable under federal bankruptcy law, due to it having been obtained though "false pretenses, a false representation, or actual fraud."

Portis is in big-time financial trouble. In December, Deadspin reported on his bankruptcy filing, which included $4.85 million in unpaid debts that he claimed he couldn't pay. The $170,000 he owes the Borgata was among those debts.

Portis, 34, last played in the NFL in 2010 with Washington. He spent nine seasons in the league and ran for 9,923 yards and 75 touchdowns.

Portis' cautionary financial tale is why athletes would be wise to follow the wealth-management approach taken last offseason by Jets cornerback Buster Skrine, who interned on Wall Street as he prepared for free agency riches.

Darryl Slater may be reached at dslater@njadvancemedia.com. Follow him on Twitter @DarrylSlater. Find NJ.com Jets on Facebook.