The two had what was termed as an amicable split in October. But this weekend, Rogers filed this rather odd lawsuit against Agassi's wife, tennis great Steffi Graf, for a whopping sum of, uh, $50,000. In the very brief legal filing, Rogers says that's the sum he's owed by Graf in commissions from investments she has in an account he manages for her through Bear Stearns. She hasn't paid him since ... October.
A few things here:

* The lawsuit says that Graf hasn't paid Rogers his commissions since October 2008 which is only five weeks ago. It says she paid up like clockwork prior to that. Suing over chump change after such a short dereliction? Tough customer.
* I have no idea whether this is relevant, but Bear Stearns was one of the first major U.S. investment houses to collapse in the subprime mortgage disaster. It was bought for peanuts by JP Morgan Chase in March. The lawsuit said Graf had an account in excess of $20m there, thanks to Rogers. Could it be that the value of her investments fell precipitously amid this downturn and, thus, created the friction between Rogers and Agassi/Graf? If Rogers put Graf's money into bad investments that are now coming home to roost, odds are fairly good he did the same for Agassi, right?
Bottom line: Something tells me the root cause of this could very well be the horrible economy and all those risky investments. They weren't just made by CEOs like Sheldon Adelson and Gary Loveman with corporate money and they weren't just made by overly ambitious low-income people who ignored or never saw the fine print.
Could the Agassi-Graf-Rogers problem show that the risky investments that went into the toilet were also made by rich people with their own money, too?
This will be interesting to watch. Why would Graf just stop paying her fees ... unless she can't? Or unless the account balance fell below the threshold indicated in the lawsuit for Rogers to get a cut? There were already rumors that Graf didn't care for Rogers personally, but that would be easy to overlook when times were good, yeah?
My theory could be meritless. But the Bear Stearns angle here seems like a red flag.