The Cardinals’ measured use of Ryan Helsley even as he asserts his place as a late-inning force is engineered to avoid the temptation of turning too quickly, too often to the right-hander.
They’ve seen relievers burn bright in May, burn out by September.
“The most important thing with Helsley is keeping him healthy for 162 games — that is at the top of our list,” manager Oliver Marmol said. “We’re seeing a very good pitcher with electric stuff and who is going to close out games and pitch in high-leverage situations. How do we keep that for the duration of the season?