It has been 20 years since a sister-city exchange between Baltimore and Kawasaki resulted in a little youth baseball. A Baltimore team traveled to the Japanese metropolis for some games in 1989. This weekend, a team of 15-and-under players from Kawasaki arrives in Baltimore for a couple of games with a city team oragnized by the Department of Parks and Recreation's Bob Wall. Boys from Locust Point, Roland Park, Northwood and some players from Poly will take on the Kawasaki kids Sunday evening, 5 pm, at the field at Giman School. They'll play a second game on Tuesday at 11 am at the baseball field at Johns Hopkins' Homewood campus. Public is invited to come and watch.