Sierra went 4-for-4 with a run during Sunday's loss to Pittsburgh.

The 21-year-old outfielder is now 16-for-39 in the majors but is still looking for his first extra-base hit. Sierra's speed is probably always going to be more of a fantasy asset than his power, and it's unknown how frequently he'll start during his current stint with the Cards. He probably shouldn't be a priority in the majority of settings because he'll likely return to the minors once Stephen Piscotty (groin) returns from the disabled list.

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