A$AP Rocky Pleads Not Guilty <br />in Sweden Assault Trial .<br />The 30-year-old rapper was <br />arrested for assault in Sweden <br />nearly a month ago.<br />His trial began on Tuesday, <br />and he plead not guilty to beating <br />up 19-year-old Mustafa Jafari.<br />The rapper's mother, Renee Black, <br />was also in attendance.<br />Prosecutors allege that A$AP and two of his associates struck Jafari with a bottle after being knocked down.<br />A$AP's attorney, <br />Martin Persson, claims he has evidence that "no bottle" was involved.<br />If the rapper is convicted, he will <br />face up to two years in prison.<br />He continues to maintain <br />his innocence and insists <br />he was acting in self-defense.