Adam Wainwright may miss the remainder of the season with an Achilles injury, but the St. Louis Cardinals have no plans to swing a major trade.

John Mozeliak says the club's first move will be to replace Wainwright from within the organization.

"If you get into May and early June and you don't feel like the internal options are the solution you were hoping for then you might have to look outside," the general manager said.

Tyler Lyons, Tim Cooney and Zach Petrick could all be short-term options to fill Wainwright's spot in the rotation. Marco Gonzales and Jaime Garcia, who are both injured, could help later on.