*Text appearing in italics has appeared in a previous series preview.
The last time these two teams met, the Mariners lost both Felix Hernandez and Mitch Haniger in the same game. They would go on to win that series in Detroit anyway but it was still a major disaster for the team. With Haniger back, Jean Segura returning sometime during this series, and Felix and Iwakuma returning later this week, the Mariners are just now getting back to full strength. Their record has been exactly .