This free clinic is for all 4th-8th grade Mercer Island girls, recreational or select, to brush up on their basketball skills. The Tune Up will be held this Sunday, Sept. 20, at MIHS, from noon to 2 p.m. Select coaches will be working with players on ball handling and shooting. For those players interested, tryouts for MI Girls Select Basketball will begin on Sept. 27. Information can be found on the club website at www.migb.org .