Rightwing Doug Patey joined the Washington Capitals tonight for their important Norris Division contest here against the Pittsbursh Penguins.

Patey was brought up under emergency conditions to replace Bob Sirois, the Capitals' leading scorer, who was left at home for treatment of a pulled muscle in his neck.

Despite his problem, which occurred during practice Monday night, Sirois managed to score his 15th goal and 14th assist during Tuesday's 6-3 loss to Boston at Capital Centre.

Sirois saw little action in the last half of the game because of the pain and said afterwards. "This morning I could'd move my neck. I still can't. I'll try to play tomorrow. I certainly want to play We'll see."

After Sirois endured another sleepless night, general manager Max McNab decided to let the team doctors see. So Sirois missed his first game of the season, after playing 32.

A year ago, Sirois was able to play only 45 games, scoring 13 goals, as he was idled by a series of injuries that included a strained knee ligament, a broken thumb, torn shoulder ligaments and a back problem.

Patey, who turned 21 on Dec. 20, collected nine goais and 21 assists in 26 games with Hershey of the American Hockey League. Patey was the leding scorer among Capital farmhands at Hershey.

Patey spent the first half of the 1976-77 season with the Capitals, but scored only three goals in limited playing time and was shipped to Dayton of the international League, where he posted 11 goals in 39 games.