Guerrero, the cousin of big-league superstar Vladimir, spent the last four seasons with the Gary SouthShore RailCats, where he owns both the career and single-season franchise records for home runs. He hit .294 with 12 home runs and 82 RBI last year in a notoriously pitcher-friendly home ballpark. On June 9, 2010, Guerrero made baseball history when he hit five home runs in five consecutive plate appearances in a doubleheader against Rockford. The feat drew national headlines and the interest of many baseball historians, who noted it had only been done twice before in professional baseball and never at the major-league level.
The native Dominican began his career in 1998 at age 17 in the Milwaukee Brewers system. Since then he has had time with the Seattle Mariners, Los Angeles Angels and Washington Nationals organizations before joining the independent ranks in 2007.  He is a career .274 hitter with 156 home runs and 697 RBI.