Alex Sherman (born January 21, 1984) is a Moldovan-born professional wrestler, better known by the ring name Alex Koslov.Koslov has mainly worked in Mexico from 2005 until 2008 for Consejo Mundial de Lucha Libre (CMLL), but in October 2008 he made a surprise jump to rival promotion Asistencia Asesoría y Administración (AAA), where he worked until October 2010.