The Los Angeles Dodgers beat the Arizona Diamondbacks 6-0 on Monday night to become the first team in Major League Baseball to clinch a playoff berth this season.

The Dodgers thought they had secured a playoff berth Sunday after beating the San Diego Padres, celebrating with a postgame toast.

However, MLB said Monday that it failed to account for a potential scenario in which the Padres (77-64) overtake the Dodgers for the NL West title and Los Angeles finishes in a three-way tie at 96-66 with the Milwaukee Brewers and St. Louis Cardinals.

Milwaukee would win the NL Central in that scenario while St. Louis would win the wild-card tiebreaker with Los Angeles based on head-to-head results this season.

They've now reached the playoffs 10 straight times, the third-longest streak in major league history.