Cardinals' Nick Robertson: Optioned to Memphis

The Cardinals optioned Robertson to Triple-A Memphis on Saturday.

Robertson has posted a 4.50 ERA across eight innings this spring, but the Cardinals will need to see a larger sample from him before adding him to their bullpen. The 25-year-old right-hander logged a 6.04 ERA and 1.75 WHIP across 22.1 frames last season between the Red Sox and Dodgers.