The Mariners have been breaking plenty of glass this postseason, but that hasn’t equated to sustained success.

As they head back to Toronto for the dramatic conclusion of the ALCS, up 3-2 , there are admittedly fewer questions about the offense than there were seven innings into Game 5; go-ahead grand slams will do that for you .

But there are still a few for a lineup that will have to contend with rookie phenom Trey Yesavage in Game 6, before facing Shane Bieber for a second time in an if-necessary Game 7. Of those issues, scoring first isn’t one of them. But what happens after that may be bolded, circled and underlined at the top of the list.

In 10 playoff games, the Mariners have struck first nine times. They’re the third team to do that in a single postseason, joining the 1998 Y

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