Avengers TONIGHT

at Arizona, 6

TNN (delayed, 9)

* Site--America West Arena, Phoenix.

* Radio--KMPC (1540).

* Records--Avengers 0-4, Rattlers 3-1.

* Update--You can’t always pick your chances or your entrance. But Todd Marinovich, who becomes the starting quarterback for Los Angeles tonight, is under pressure. The Avengers, hungry for their first franchise win, are bumping along with the league’s fourth-worst offense at 39.5 points a game. The Rattlers average 50.2 points, but are coming off a 66-46 loss to Nashville. Marinovich, scheduled to be arraigned May 16 on suspicion of sexual assault, has practiced with the starting unit only two days.