USA Today reports that Eagles tight end James 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 said Casey should be ready to go by the start of training camp. 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 Texans fullback/tight end is expected to play a key role in coach Chip Kelly's offense.