Cardinals' Tyler O'Neill: Shut down 10 more days

O'Neill (back) will be shut down for the next 10 days, John Denton of MLB.com reports.

O'Neill's recovery from a lingering lower back injury has stalled, and further testing conducted this week showed little progress. The 27-year-old outfielder initially went on the injured list May 5 and can probably be ruled out until at least late June.