It's a big spring training for Jordan Walker, who hopes to solidify his spot as a key member of the St. Louis Cardinals young core moving forward. Walker is a f

Marmol described Walker's progress two days after being diagnosed with inflammation in his left knee as "a little ahead of what I expected," adding that he's "super encouraged" with how the outfielder is feeling. Walker will be held out of Grapefruit League action for a few more days but is tracking toward avoiding a stint on the injured list.