Both Hence and Roby are considered Top 10 prospects in the Cardinals' organization, though their path to the majors is not yet clear.

On Tuesday, the Cardinals added four prospects to their 40-man roster to protect them from the Rule 5 Draft. Among the prospects the clubs have decided to add to the 40-man roster included one of the Cardinals top pitching prospects in Tink Hence.

They will be expected to take major developmental leaps forward, or at least, will the Redbirds decide if they should still be considered major pieces of the future.