Former NBA star Antoine Walker’s rise and fall have been well documented over the years — here and elsewhere — and as he toils away in the D-League, Walker was forced to sell off the title ring he won with the Miami Heat in 2006 as part of his bankruptcy case. Reports TMZ: “Antoine Walker’s NBA Championship ring just sold for $21,500 … Walker — who won the ring as a member of the 2006 Miami Heat — filed for bankruptcy back in 2010 claiming he racked up more than $12.7 million in debts but had only $4 million in assets. According to court docs, Walker had to liquidate his property to pay back his creditors including his ring. [...] The ring has been tentatively sold to a guy named Andres Garcia for a cool $21,500. A judge needs to sign off on the deal before any money changes hands but we’re told it’s pretty much a done deal.”