MLB roundup: Jake Arrieta takes big step in right direction

Arrieta dialed in against Cardinals (1:50)

Dan Shulman, Jessica Mendoza and Aaron Boone break down the Cubs' 5-0 win over the Cardinals with Jake Arrieta looking strong over seven scoreless innings and Pedro Strop returning to action in the first time in over a month. (1:50)

CHICAGO -- Jake Arrieta moved deliberately through his delivery Friday, as if he was taking the necessary time to make sure that everything was in order in his pitching mechanics.

His weight gathered correctly over the mound on his right leg. Check.

The proper pacing in the turn of his hips, with his back to the hitter, as he hid the ball from the hitter. Check.

The steady spin out of that turn and drive toward the plate -- the part of his delivery that distinguishes Arrieta’s deception because of how it looks he’s throwing the ball from shortstop, as the Pirates’ Francisco Cervelli once said. Check.