(AP Photo/Tony Gutierrez)It's normal for a baseball player to dream of making his big league debut or pitching in the postseason. He became the fifth player in the modern era to make his big league debut in a postseason game — and three of those newcomers did it this year. The Padres lost 5-1, but it was scoreless when Weathers came in — a reasonably high-pressure situation, compared to other players who made their debuts in the postseason. In 2015, Adalberto Mondesi made his debut for Kansas City in Game 3 of the World Series. "He’s here to play, and that’s why we carried him on this roster.”McClanahan's debut came in Game 1 of the AL Division Series on Monday night.