The Facts: Casey will undergo arthroscopic surgery to clean out loose cartilage his right knee and will be out of action for the rest of the spring, a team spokesman confirmed to USA TODAY Sports. The spokesman said Casey should be ready to go by the start of training camp.

Diehards Line: The Eagles signed tight end Will Shaw this week, surely in part to help take some reps in Casey's absence. Shaw's addition is why the team waived running back Miguel Maysonet, who was claimed by the Cleveland Browns. ... Casey signed a three-year deal with $14.5 million as one of the first additions for the Eagles in a busy opening few days in free agency. The former Houston Texans fullback/tight end is expected to play a key role in coach Chip Kelly's unorthodox offense.