several factors hindered hayes' performance during the season. he hyperextended his left knee and was sidelined for two weeks. his stamina and durability over an 82-game season was an issue as well; hayes' style of play was more physically demanding than most. finally, hayes has become somewhat notorious for getting in foul trouble. he ended his second season with the third-most fouls per game and 7th-most fouls per minute in the nba.