Whitlock is becoming a late-inning weapon in Red Sox bullpen

If the Red Sox are going to be playing baseball well into October, plenty of credit has to go to a stout bullpen.

Boston’s 4-3 comeback win over the Orioles on Monday was once again punctuated by another shutdown showing from closer Aroldis Chapman — who pitched a perfect inning to secure his 25th save in 27 total opportunities this season.

The free-agent pickup has been one of the top offseason additions in baseball this year, with the 37-year-old southpaw sporting a miniscule 1.06 ERA and 0.69 WHIP while striking out 71 batters over 51 innings of work.

As noted by MassLive’s Chris Smith , Chapman has not allowed a hit to the last 38 batters he’s faced, with his last hit allowed coming all the way back on July 23 against the Phillies.

In other words, Chapman has not relinquished a hi