Source: Hollywood To You/Star Max / Getty NBA baller Tristan Thompson is suing. The current Cleveland Cavalier and Khloe Kardashian’s baby daddy is suing the woman who claims he fathered her kid. Thompson was in a relationship with the woman way before he got with Kim Kardashian’s sister, but he feels she has sullied his good name. And considering a DNA test reportedly proved he’s not the papi, it sounds like an open and shut case. Reports TMZ: Tristan just filed the suit against Kimberly Alexander … the woman who’s very publicly claimed the NBA star is the father of her 5-year-old son — something he’s repeatedly denied. In the lawsuit, Tristan says the paternity test he took back in January “definitively concluded that [he] is not the father.” Paging, Maury Povich! Accordin...