Montreal (CFL) -- Put RB David Overstreet and DE Keith Gary, No. 1 NFL 1981 draft picks of Miami and Pittsburgh, respectively, who opted for Canada, on injured reserve for season although Concordes Coach Joe Galat admitted neither is hurt seriously.

Buffalo Bills--Brought in ex-Chief RB Ted McKnight for tryout after mediocre opening-game showing by replacements for holdout Joe Cribbs.

Cincinnati Bengals--Cut WR Dan Plater, re-signed LB Ron Simpkins.

Denver Broncos -- Signed DB-WR Steve Wilson, four-year Dallas Cowboy out of Howard U.

Green Bay Packers--Waived rookie LB Thomas Boyd off injured reserve and cut WR Wamon Buggs, evidently preparing to recall RB Jim Jensen and sign ex-Charger LB Jim Laslavic.

Kansas City Chiefs--Put C Jack Rudnay, arthroscopic surgery on left knee, on four-week IR; re-signed C Al Steinfeld.

Minnesota Vikings -- Signed WR Sam McCullum to the same contract he had with Seattle, which runs through 1983.

New York Giants -- Holdout RB Rob Carpenter asid, "The only possibility of me returning to the Giants is if they (NFL players) were to strike next week and get the situation resolved the following week," after which he could renegotiate.

Arizona Wranglers (USFL)--Signed former Baltimore NFL starting DE Greg Fields, former U. of Nevada-Las Vegas QB Larry Gentry.