The 23-year-old has been put of action since November.
Crystal Palace lie just one point above the relegation zone in the Premier League table.
Palace have added two strikers to their ranks this summer.
Crystal Palace striker Connor Wickham questions whether James Forrest’s goal against Hearts should have stood.
The Sheffield Wednesday and the Crystal Palace strikers played together at Sunderland.
Sheffield Wednesday beat Brighton & Hove Albion 3-1 on aggregate to book their place at Wembley.
The 23-year-old striker has been discussing his spell at Palace so far.
The Eagles manager sees similarities between Carroll and Wickham but says his striker must learn to protect himself to avoid injury.
The Crystal Palace manager raises doubts over the fitness of three players but says Connor Wickham could be fit enough to play some part.
Crystal Palace and Sunderland drew 2-2 at the Stadium of Light last night.