Database: game_injury
Question: In which season did any player have an injury of 'Foot injury' or 'Knee problem'?
SQL: select t1.season from game as t1 join stadium as t2 on t1.stadium_id  =  t2.id join injury_accident as t3 on t1.id  =  t3.game_id where t3.injury  =  "foot injury" or t3.injury  =  "knee problem"