ABC's contract was further modified prior to the 1980 season, with the network airing just five "Monday Night Baseball" telecasts in June of that year, followed by "Sunday Afternoon Baseball" in August and September. ABC did Sunday afternoon games late in the season in order to fulfill the number of games in the contract and to not interfere with "Monday Night Football". Also in 1980, ABC (with Al Michaels and Bob Uecker on the call) broadcast the National League West tie-breaker game between the Houston Astros and Los Angeles Dodgers. On October 11, 1980, Keith Jackson called an Oklahoma-Texas college football game for ABC in the afternoon, then flew to Houston to call Game 4 of the NLCS). In the meantime, Don Drysdale did the play-by-play for the early innings (up until the middle of the fourth inning). Meanwhile, ABC used Steve Zabriskie as a field reporter during the 1980 NLCS.