PHILADELPHIA — There was a time not long ago when Corey Phelan started his days at the Phillies complex in Clearwater, Fla., where he was rehabbing an elbow injury. Phelan would wake up at 7 a.m., eat breakfast, and change into his practice gear. Then he would do soft tissue prep, maybe some fielding practice and a workout. A few months later, everything has changed. Phelan now wakes up at Memorial Sloan Kettering Cancer Center in New York at 10 or 11 a.m. A team of doctors comes in shortly after to let him know how his blood count looks, and to prep him for chemo treatments, which he receives…
