This article is a first approach to the use of Rete algorithm to design a team of robotic soccer playing agents for Robocup Soccer Server. Rete algorithm is widely used to design rule-based expert systems. Robocup Soccer Server is a system that simulates 2D robotic soccer matches. The paper presents an architecture based on CM United team architecture for Robocup Soccer Server simulation system. It generalizes the low-level information received by the agent as high-level soccer concepts. This way it can take advantage of expert system design techniques.