The Washington Diplomats winners of five of their last six games, will be facing a tough defensive club tonight when they meet the Seattle Sounders in a North American Soccer League game in the Seattle Kingdome.

The contest, the first meeting between the teams this season, will be broadcast on WTOP-Radio (1500) at 11 p.m. and will be carried on a delayed basis by WTTG-TV-5 at 11:30.

Seattle is only 12-13 overall but is formidable at home, where it has won nine of 11 matches. Goalkeeper Tony Chursky has recorded a league-high nine shutouts and backs up a defense that has allowed opponents only seven goals in the Kingdome.

Defender Jim McAllister, last season's NASL rookie of the year, will try to contain Diplomat forward Ken Mokgojoa, who has tallied one goal in each of his last eight games. Another defender is three-time NASLAll-Star Mike England.

Washington is healthy, with the exception of defender Tommy O'Hara. He is suffering from a hip strain caused by a collision in practice last week and is given an even chance of playing.

Diplomat goalie Bill Irwin will be back in the lineup after taking a one-game rest in Washington's 5-1 victory at San Jose last Saturday. Bob Stetler played in Irwin's place.

Tonight's match will wrap up Washington's two-game West Coast swing. The Diplomats play host to East Division foe Rochester at RFK Stadium at 8 p.m. Saturday.