Chapman lowered his season ERA to a ridiculous 1.29 with his scoreless inning against the Cincinnati Reds on Wednesday. That sealed the win and marked Chapman's 16th save of the season in 17 tries. But it was also a significant career milestone for the 37-year-old.

The Boston Red Sox are not out of contention yet, but if they struggle in the coming weeks, they could end up becoming sellers near the July 31 trade deadline.