It's a pretty stunning fall from grace for Martinez, who was not just a consensus Top 100 prospect in baseball, but ranked in the top 30 by Baseball America for three years running from 2007 to 2009. ?The bottom line has been that he's been injured every single season of his professional career (here's the nasty history), and hasn't hit that much when he has been on the field. ?In his first 145 MLB PA, he's hit .183/.250/.290.
However, over three seasons in AAA, his age 20, 21, and 22 years he's hit .265/.326/.465. ?That's a .200 isolated slugging percentage if you're playing along at home. ?The International League average was .140. ?So even while playing as one of the youngest players in the IL, he was producing (when he played) above average power. ?Sure, it hadn't translated to the big leagues yet, and it might never.