Reyes underwent an extensive review of his shoulder by team doctors Monday to determine whether or not he could start spring training on time, Derrick Goold of the St. Louis Post-Dispatch reports.
The results of the review are not yet known. The 27-year-old finally had an injury-free season last year and recorded 29 saves with a 30.0 percent strikeout rate and a 3.24 ERA, though he also walked 16.4 percent of opposing batters. Reports from last season indicated that the Cardinals planned on Reyes pushing for a rotation role this season, but it's possible he remains in the bullpen if the team doesn't think his arm can handle the increased workload.