The Mariners are calling up pitching prospect for his big league debut, Robert Murray of Fansided. Hancock, the No. 6 overall pick in the 2020 draft, is not yet on the 40-man roster and will need to have his contract selected. Hancock, 24, has to sed 98 innings in Double-A this season, working to a 4.32 ERA with a career-best 26% strikeout rate, a 9.2% walk rate and a 42% ground-ball rate. Hes...