 Deska is a right-handed pitcher and started his professional baseball career with the Toronto Maple Leafs of the Intercounty Major Baseball League.In 2006, as a rookie in the Intercounty Major Baseball League, Deska acted as a reliever for the Toronto Maple Leafs and posted a 1-2 record with a 3.12 ERA while tallying 19 strikeouts in 17.1 innings of work.Deska pitched in his first Dutch Major League (Honkbal Hoofdklasse) season in 2007 for RCH Mediamonks who made their first appearance in the top Dutch league in 6 years.