Here are the 17 newcomers on Seattle's 40-man roster who will report to Peoria, Ariz., later this month:
Pitchers
RHP Jonathan Aro: The 25-year-old Dominican came to Seattle as part of the Wade Miley-Carson Smith trade with the Red Sox and will be given a shot at earning a bullpen spot. Aro is something of a late bloomer, having not started pro ball until age 20 due to dealing with dengue fever as a youngster. He was pitching in Class A ball in 2014, but quickly advanced from Double-A to Triple-A and then a late-season stint with the Red Sox last year and could be an interesting reliever to watch in camp.