Portland Trail Blazers forward Rasheed Wallace was suspended yesterday for seven games without pay for confronting and threatening a referee after a game Wednesday night outside the Rose Garden in Portland, Ore.

Referees mentioned the confrontation in a routine report filed after Portland's 100-92 victory over Memphis on Wednesday. The confrontation was with Tim Donaghy, who called a technical foul on Wallace in the third quarter.

''He accosted a referee and threatened him,'' Stu Jackson, the N.B.A.'s senior vice president, said in a conference call yesterday. Jackson refused to elaborate on the confrontation.

The incident occurred in the arena's loading dock, where players and other game personnel park their cars.