Four more Pittsburgh Pirates prospects have been added to the Mesa Solar Sox roster in the Arizona Fall League this year. At the end of last month we heard that Robbie Grossman and Brock Holt were heading to the AFL. Joining them will be left hander Nathan Baker, right handers Mike Colla and Phillip Irwin, and second baseman Jarek Cunningham.
Baker had a 3.34 ERA in 148.1 innings in high-A Bradenton this year, with a 6.4 K/9 and a 3.1 BB/9 ratio. Colla had a surprising season in Altoona, with a 3.70 ERA in 133.2 innings, including a 3.72 ERA in 123.1 innings as a starter. Irwin had a big season, starting out with a 2.03 ERA in 53.1 innings in high-A Bradenton, then moving up to Altoona, where he posted a 3.81 ERA in 87.1 innings, with a 69:10 K/BB ratio.
Tim is the owner and editor in chief of Pirates Prospects. He started the site in January 2009, and turned it into his full time job during the 2011 season. Prior to starting Pirates Prospects, Tim worked with AccuScore.com, providing MLB, NHL, and NFL coverage to various national media outlets, including ESPN Insider, USA Today, Yahoo Sports, and the Wall Street Journal. He also writes the annual Prospect Guide, which is sold through the site. Tim lives in Bradenton, where he provides live coverage all year of Spring Training, mini camp, instructs, the Bradenton Marauders, and the GCL Pirates.