If the Dodgers lose today (Game 4 of the NLDS), they would fall behind 2-2 in the best-of-five series against the Philadelphia Phillies. This loss would force a decisive Game 5 back in Philadelphia, a tough environment for the Dodgers to finish the series. It would make today's game a must-win for the Dodgers to avoid a win-or-go-home Game 5. They currently lead the series 2-1 after winning the first two games in Philadelphia but losing Game 3 at home 8-2. The momentum would shift to the Phillies, who would be rejuvenated and confident going into the final game of the series. The Dodgers are aiming to close the series today to avoid that pressure scenario.