Reyes (elbow) could begin a throwing program in four weeks, Derrick Goold of the St. Louis Post-Dispatch reports.
Reyes, the Cardinals' top pitching prospect, was vying for a rotation spot with the big club heading into spring training, but those hopes were dashed after he required Tommy John surgery in February. The 22-year-old has spent the last few months rehabbing in St. Louis so he could learn from the club's other veteran starters, and it appears he'll soon be able to start up the recovery process in earnest. Reyes has already been ruled out for the rest of the season, so his main objective will be gradually increasing his throwing distance before potentially resuming mound work once fall arrives.