Baseball National League -- Suspended San Francisco OF Kevin Mitchell for two games and fined him an undisclosed amount for his role in a brawl April 10 at San Diego. Mitchell might appeal the ruling today.

Pittsburgh Pirates -- Placed P Bob Walk (strained right groin muscle) on the 15-day disabled list. Recalled 1B Orlando Merced from Class AAA Buffalo.

Colleges

Creighton -- Named assistant Rick Johnson men's basketball coach.

Essex CC -- Named John "Sonny" Askew men's soccer coach.

Notre Dame -- Announced the retirement of Digger Phelps, men's basketball coach.

C7 Samford -- Named John Brady men's basketball coach.

Pro football Detroit Lions -- Signed RB Don Overton.

New Orleans Saints -- Signed LB Vaughan Johnson to a four-year contract. Sighed DL Jim Wilks and TE Hoby Brenner to two-year contracts.

0 Phoenix Cardinals -- Released WR J.T. Smith.

Hockey

Buffalo Sabres -- Sent D Kevin Haller, D Ken Sutton, F Darren Shannon and G Darcy Wakaluk to Rochester (AHL).

New York Rangers -- Sent C Corey Millen and RW Steven Rice to Binghamton (AHL).