Mika Koivuniemi might be pretty much retired from top-level bowling after becoming the coach of the United Arab Emirates national team, but he showed this week that he’s still “Major Mika.” The 51-year-old right-hander who won three majors among his 14 titles during his 16-year PBA Tour career started Friday in second at the Suncoast PBA Senior US. Open presented by Storm, climbed to the top seed during 12 games of modified round-robin match play, then defeated a red-hot...