Roy Halladay by BruceM

Question 3

Two answers required. In addition to Halladay's near no-no, September 27, 1998, featured not only Mark McGwire's 70th home run but also losses by the two National League teams that would finish the 162-game schedule tied for the wild card. Name both those teams, which started Steve Trachsel and Mark Gardner in the tie-breaking game the next night.

Chicago Cubs; San Francisco Giants