Corey Phelan, a pitcher in the Phillies’ minor league, has died at the age of 20 after a battle with non-Hodgkin lymphoma. Read his team’s touching statement in his honor. The baseball community is mourning the loss of one of their own. Corey Phelan, a left-handed pitcher in the Phillies’ minor league, has died after a battle with Non-Hodgkin lymphoma. …