It ends in a whimper: A-Rod drops lawsuit against MLB, MLBPA
There has been no explanation given for the dismissal. Craig Calcaterra of Hardball Talk, a former lawyer, laid out some potential reasons, some far fetched, others more plausible. In the end, Calcaterra concludes that the simplest explanation is likely correct, that A-Rod wanted to stop. We'll see if that ends up being the case, but usually the simplest explanation is the correct one.
If A-Rod has decided to stop and doesn't refile, that means the Biogenesis case is mercifully over. Finally, A-Rod has done something we can cheer for.