Why the San Francisco Giants won’t be playing the Seattle Mariners this season

The San Francisco 49ers have won nine straight games, but they will not be playing Seattle in their first postseason series since 2004.

The Niners’ only other trip to the postseason was in 2001.

The Seattle Seahawks will host the 49ers in the first round of the playoffs in 2018, and the Niners won’t face the Seahawks again until 2021.

This series is over, so no further matchups will take place.

The Seahawks will face the San Diego Chargers in the 2019 playoffs.