The Tribe added that group to the club's 40-man roster, removing them from the pool of players teams can draw from during the upcoming Rule 5 Draft. Players who were first signed at the age of 18 must be added to 40-man rosters within five years or they become eligible to be drafted by other organizations in the Rule 5 Draft. LaPorta, who is out of Minor League options, can't refuse the assignment since this is the first time in his career he has been outrighted. Portillo, a 20-year-old right-hander who is ranked No. 7 among the Padres' top prospects, was 8-11 with a 3.34 ERA over 26 starts in 2012 between Class A Fort Wayne and Double-A San Antonio.