The ASL All-Star game was hosted by the Washington Diplomats at RFK Stadium. Players that were unable to play due to injury, as well as any Dips selected to the squad were replaced, since the All-Stars' opponent was the Dips.
In anticipation of a proposed merger (which took place the following year) the ASL champions faced off against the Western Soccer League champions in the 1989 National Pro Soccer Championship on September 9 in San Jose, California's Spartan Stadium. This would be the first time since 1984 that an undisputed national champion of professional soccer was crowned in the United States.[3]