Johnny Manziel's troubles - both legal and personal - are worsening. A scrambling quarterback who can usually wriggle his way out of a predicament, Manziel is under pressure unlike any he's felt before. Dallas police announced Friday night they were launching a criminal investigation into a domestic violence assault complaint filed against Manziel, who was involved in an altercation last weekend during which he allegedly struck his ex-girlfriend, Colleen Crowley, several times. More...