As Axl Rose’s unmistakable voice filled T-Mobile Park as “Welcome to the Jungle” by Guns-N-Roses blared at uncomfortable decibels, the crowd of 42,794 fans, many of whom were there to celebrate the Hall of Fame pitcher that made that song his own, rose to their feet for a second time to produce an ovation deserving of Emerson Hancock’s stellar effort. The Mariners’ starter delivered the most dominant outing of his career, pitching seven innings while allowing one run six hits with no walks and career-high 14 strikeouts.  No pitcher in MLB baseball had struck out more than 12 batters in an outing this season.  Hancock had seemingly set the tone for the Mariners to pick up a pitching-dominant win on a night where they celebrated the retirement of Randy Johnson’s number . Instead, the Mariners wasted Hancock’s pitching “gem” in a 3-2 loss in 10 innings that featured careless baserunning, sloppy play in the field and a failure to add on runs early and execute in hitting situations late. Such a waste.…