University of Nebraska-Lincoln graduate Keisei Tominaga is set to sign an Exhibit 10 contract with the National Basketball Association’s Indiana Pacers, his management said Friday. The contract allows Tominaga to participate in the Pacers’ training camp and can be converted into a two-way contract before the NBA regular season begins in October. The sharp-shooting 23-year-old guard is now in Japan aiming for a place on the 12-member Paris Olympics squad. Earlier this year, Tominaga helped the Nebraska Cornhuskers reach the National Collegiate Athletic Association tournament in his final season…