 Vizcaíno signed with the New York Yankees as an international free agent on July 2, 2007.He made his professional debut with the Rookie-level Gulf Coast Yankees of the Gulf Coast League in 2008, pitching to a 3-2 win–loss record, 3.68 earned run average (ERA), with 48 strikeouts and 13 walks in 44 innings pitched over twelve games.Vizcaíno pitched for the Single-A Short Season Staten Island Yankees of the New York–Penn League in 2009, going 2-4 with a 2.13 ERA in 10 games, all starts, and striking out 52 in innings.