Justin Martínez

Justin Martínez is a 23-year-old Dominican relief pitcher who recently signed a five-year contract extension worth $18 million with the Arizona Diamondbacks. Known for his impressive fastball that reaches triple digits, Martínez had a standout 2022 season, posting a 2.48 ERA and a 29.5% strikeout rate over 72.2 innings, securing eight saves in his first full Major League season. He is viewed as a potential future closer for the team, showcasing exceptional performance metrics that place him among the top percentile of qualified pitchers.