The Pirates informed reporters on Wednesday, including Alex Stumpf of MLB.com, that catcher/first baseman Endy Rodríguez has undergone ulnar nerve transposition surgery. Stumpf says Rodríguez is ...

The Pirates informed reporters today, including Alex Stumpf of MLB.com, that catcher/first baseman Endy Rodríguez has undergone ulnar nerve transposition surgery. Stumpf says Rodríguez is expected to ...

SAN FRANCISCO — Keaton Winn’s sophomore season began with such promise. Now, he’s going under the knife. The Giants announced on Friday that Winn will undergo season-ending surgery — an ulnar nerve ...

The ulnar nerve is a major nerve that runs down through your arm and into your hand. It affects functions like squeezing and grasping things. Injuries to the ulnar nerve can be painful and limiting.