Cardinals manager Oliver Marmol said Thursday that Walker (knee) is tracking toward a return to the lineup Saturday against the Blue Jays, John Denton of MLB.com reports.
Abrams (quadricep) will start at shortstop and bat leadoff in Thursday's Grapefruit League game against the Rays, Andrew Golden of The Washington Post reports.
Rosario was a late scratch from the lineup for Wednesday's Grapefruit League game against the Astros after his knee "didn't feel right" while taking part in defensive drills prior to the contest, Mark Zuckerman of MASNSports.com reports.
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