CREATE TABLE game (stadium_id DECIMAL, id DECIMAL, season DECIMAL, date TEXT, home_team TEXT, away_team TEXT, score TEXT, competition TEXT)
CREATE TABLE stadium (id DECIMAL, name TEXT, home_games DECIMAL, average_attendance DECIMAL, total_attendance DECIMAL, capacity_percentage DECIMAL)
CREATE TABLE injury_accident (game_id DECIMAL, id DECIMAL, player TEXT, injury TEXT, number_of_matches TEXT, source TEXT)

How many distinct kinds of injuries happened after season 2010?
SELECT COUNT(DISTINCT T1.injury) FROM injury_accident AS T1 JOIN game AS T2 ON T1.game_id = T2.id WHERE T2.season > 2010
SELECT COUNT(DISTINCT "T1"."injury") FROM "injury_accident" AS "T1" JOIN "game" AS "T2" ON "T1"."game_id" = "T2"."id" AND "T2"."season" > 2010