Inbox: Who has had biggest impact this season?

Who do you think has made the biggest impact on the Mariners' success thus far? And who has been the biggest surprise?

-- Jay A., Mililani, Hawaii

There are a lot of guys having outstanding seasons, particularly Jean Segura and Mitch Haniger. But I'm going with Edwin Diaz as the one player who has been the biggest reason for the Mariners' amazing success in one-run games, which is a huge part of why they're exceeding expectations. Diaz is on pace for 61 saves, which would be one shy of the Major League record set by Francisco Rodriguez with the Angels in 2008. No other closer has ever totaled more than 57.

With 27 saves and 62 strikeouts in the team's first 71 games, Diaz has already become…