Well, someone did not check MLB 2K6 as well as they should have, and now there are reports of freezing, atleast on the Xbox 360 version of 2K Games baseball title.
The good thing is that 2K Sports is aware of the problem and has issued a statement:
For those customers experiencing technical issues with Major League Baseball 2K6 on Xbox 360, 2K Sports is aware of the “freeze” problem some customers are experiencing and is working on a solution. This appears to occur for owners of Xbox 360 with HDD and a solution will be available in the very near future. For updates on this issue, please visit this message board thread. We sincerely apologize for any inconvenience this has caused to your playing experience.