http://espn.go.com/nba/playoffs/2015/story/_/id/12976292/klay-thompson-golden-state-warriors-concussion Golden State Warriors guard Klay Thompson sustained a concussion during Wednesday's series-clinching win over the Houston Rockets and is out indefinitely, the team announced. "Following extensive examinations over the last two days -- including neurological tests earlier Friday morning -- Warriors guard Klay Thompson has been diagnosed with a concussion. He will not return to the court until he is symptom-free and cleared under the NBA's concussion protocol guidelines," the Warriors said in a statement. "He will be evaluated daily and there is no timetable for his return." Thompson threw up and experienced other "concussion-like symptoms" late Wednesday night after being kneed in the head by Rockets forward Trevor Ariza in the fourth quarter of Game 5, his father, Mychal Thompson, told ESPN. Thompson was initially cleared to return to the game by team doctors. An All-Star for the first time this season, Thompson could miss the start of the NBA Finals against the Cleveland Cavaliers. The series begins Thursday in Oakland, California.