BASKETBALL National Basketball Association

* LOS ANGELES CLIPPERS -- Signed Tharon Mayes, guard, to a 10-day contract.

* PHILADELPHIA 76ERS -- Activated Mitchell Wiggins, guard, from the injured list. Placed Brian Oliver, guard, on the injured list.

Continental Basketball Association

* RAPID CITY THRILLERS -- Signed Fred Cofield, guard.

FOOTBALL National Football League

* CINCINNATI BENGALS -- Signed Randy Kirk, linebacker-long snapper.

* LOS ANGELES RAMS -- Signed Blair Bush, center.