BASEBALL (NL) * Chicago Cubs -- Placed Mike Harkey (pitcher) on the 15-day disabled list, retroactive to April 27. Recalled Bob Scanlan (pitcher) from Iowa of the American Association.
* San Francisco Giants -- Rescinded the decision to option Trevor Wilson (pitcher) to Phoenix of the Pacific Coast League. Announced that Kevin Mitchell withdrew his appeal of a two-game suspension and fine for his part in an altercation against San Diego on April 10.
BASKETBALL (NBA) * Washington Bullets -- Signed Greg Foster (center) to a multi-year contract.
FOOTBALL (NFL) * Detroit Lions -- Signed Jerry Ball (nose tackle) to a contract extension, and Greg Patrick (safety) to a one-year contract.
HOCKEY (NHL) * St. Louis Blues -- Assigned Dave Thomlinson (left wing), Kelly Chase (right wing) and Pat Jablonski (goalie) to Peoria of the International Hockey League.