Yordan Alvarez's hand injury is worse than it originally appeared.

The Houston Astros slugger felt pain in his right hand Friday while hitting, and a small fracture that was previously believed to be a muscle strain was discovered. The fracture is about 60% healed.

General manager Dana Brown said he believes the fracture in Alvarez's fourth metacarpal wasn't discovered in initial imaging May 6 because there was too much inflammation and fluid.