In a Thursday night television attraction, the San Diego Chargers rates as three-point favorites over the Dolphins in Miami.

The key to this game will be the ability of both teams to protect their passers. Dan Fouts and his primary targets will be unstoppable unless the Dolphins make good use of the pass-rush tactics that served them so well in the upset of the Los Angeles Rams two weeks ago.

Miami is 4-1 at home while the Chargers are 3-2 on the road. More importantly, the Chargers must reverse the trend of their recent showings on national television. San Diego fell apart in the second half against the Dallas Cowboys in their last appearance in front of the ABC cameras. And it doesn't take a long memory to recall how disappointing Don Coryell's club was in last season's playoffs against injury-plagued Houston.

EARLY NFL LINE: (Thursday) San Diego three over Miami. (Sunday) Dallas 11 over Washington, Philadelphia six over Oakland, Houston six over N.Y. Jets, Atlanta seven over Chicago, New England six over Baltimore, Pittsburgh three over Buffalo, Tampa Bay 3 over Detroit, Cleveland 7 over three Cincinnati, St. Louis one over Kansas City, Minnesota six over Green Bay, Denver four over Seattle, San Fransisco three over N.Y. Giants. (Monday) Los Angeles 10 over New Orleans.