Question: Before the start of the 2014–15 Indiana Pacers season, storm clouds gathered around which American professional basketball player for the Oklahoma City Thunder of the National Basketball Association (NBA)?
Sentence (from "2014–15 Indiana Pacers season"): He also announced before the season that he would be wearing number 13 and earned the nickname 'PG-13' (his initials and new jersey number).
Relevant evidence: No