What happened to the good old days, Lenny? (Doug Mills/AP)

The obvious answer: They’re both ex-Major League Baseball stars with legal and financial troubles.

The answer we’re looking for: They’re set to go to-to-toe in a “celebrity” boxing match on Saturday night at the Avalon in Hollywood.

The card also lists equally-famous “celebs” Kato Kaelin, Coolio, Joey Buttafuoco, “Octomom” and Michael Lohan.

Oh what a night!

What would drive these washed up “stars” into the ring? Well, Dykstra’s recent rap sheet additions might be as good a reason as any to go after a wad of guaranteed cash.

Earlier this month the 1986 World Series champion and former three-time All-Star and Philadelphia Phillies fan favorite-turned drug addict (turned flasher), changed his plea from not guilty to no contest on charges of auto theft and providing a false financial statement.

”Nails” and his co-defendants are accused of trying to lease and sell high-end cars from California dealerships by claiming credit through a fake business. The plea change dropped the 48-year-old’s maximum possible prison sentence from 12 to four years.

But back to the main event. Apparently there’s some bad blood between Dykstra and Canseco. So much, in fact, that Dykstra begged to take Tareq Salahi’s (yes, that Tareq Salahi) place in the ring opposite everyone’s favorite steroid-user-turned-boxer.

Here’s Dykstra’s quote from the press release:

“Canseco ruined my career by spreading lies. I called Tareq and begged him to let me take his place in the upcoming fight against Canseco.”

And here’s more from Dykstra’s business manager, Dan Herman:

“Lenny is fighting for his good name in baseball. Lenny’s life for the last two years has been upside down mainly because of snitches. Canseco is one of the many rats that have diminished Dykstra’s career.”

Oh, so that’s what this is all about. Not some cheap publicity stunt for two guys desperate to pay off their mounting debts. Got it.

So... who’s hosting the pay-per-view party?

*Haven’t seen odds on the fight, but Herman has predicted a Dykstra KO in the third.

**And there’s no word on whether or not there will be any steroid testing prior to the fight. I’m guessing no.

(H/T Philly.com)