Jennifer Capriati is facing down allegations that she stalked and harassed an ex-boyfriend, culminating in a Valentine's Day showdown in which he alleges that the 36-year-old tennis great tracked him down in a Palm Beach gym, "started screaming" at him, then punched him "with a closed fist four times in the chest." CNN reports that 28-year-old Ivan Brannan Jr. went to police four days later and complained of seven other incidents of "stalking/harassing/following" him. Capriati's camp dismisses Brannan's account as "exaggerated," noting that no arrest warrant has yet been issued, and says that "when the truth comes out, she will be vindicated from these charges." The pair apparently dated for less than a year, ending their relationship in February 2012. (More Jennifer Capriati stories.)