John Sickels has Gerrit Cole as his number one prospect.

Over the weekend, John Sickels of MinorLeagueBall.com released his top 20 Pittsburgh Pirates prospects for the 2013 season. As he notes, the grades are preliminary and subject to change, with no grade being final until January 5th.

There weren't many surprises on the list. In comparing his list to our list, there are a few differences in the ranking order, but for the most part everyone is in the same tiers. Sickels breaks his rankings down with letter grades. Gerrit Cole and Jameson Taillon both received Grade A rankings. Nine prospect received a Grade B ranking, ranging from a B+ to a B-.  Last year the Pirates had eight players combined with Grade A and B rankings, so there has been some improvement. Some of the guys who jum...

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