by Michael Hurcomb | CBSSports.com (2/11/2013) MLB.com reports the 2013 season will be a key year for Giants third base prospect Adam Duvall. The 2010 11th-round pick clubbed 30 homers at Class A last season, but he hit just .258 with a .327 on-base percentage. "He's a guy to watch and it's going to be a big year for him, whether he turns the page and continues to develop," Giants director of player development Fred Stanley said.