Roberto Antonio Petagine Hernandez (/pɛtəˈɡɪneɪ/; born June 2, 1971) is a retired professional baseball player of Italian descent. His Major League Baseball career includes brief stints with the Houston Astros (1994), San Diego Padres (1995), New York Mets (1996 and 1997), Cincinnati Reds (1998), Boston Red Sox (2005), and Seattle Mariners (2006); but he is best known for his success in the Japanese Central League between 1999 and 2004 where, as a member of the Yakult Swallows (1999–2002) and Yomiuri Giants (2003–2004), he was among Nippon Professional Baseball's premier offensive players.