EXCLUSIVE: A-Rod is blasted as a 'serial cheater and liar' in bitter legal battle with his ex brother-in-law who accuses the former Yankee of racketeering,...

Alex Rodriguez, 45, is being sued for $50million by his ex-wife Cynthia's brother Constantine Scurtis. Scurtis accuses A-Rod of embezzlement and racketeering in a new court fil…