Yankees prospects: Gerrit Cole makes first rehab start, Somerset walks off  Pinstripe AlleyYankees’ Gerrit Cole throws 4⅓ innings in his 1st rehab start  ESPNGerrit Cole shows some rust as he hits ‘big milestone’ in his first Yankees rehab start  New York PostGerrit Cole set to begin rehab assignment, starting timeline for Yankees ace’s return to rotation  CBS SportsPhillies just got hit with the Yankees rehab assignment bomb no one wanted  That Balls Outta Here