Boston Celtics guard Kyrie Irving will miss Monday night's game against the Chicago Bulls because of a left quadriceps contusion. The Celtics, playing the second night of a back-to-back on the road, also will be without forward Marcus Morris, who is battling left knee soreness. Boston has listed Al Horford as questionable due to a right knee contusion.?Horford bumped knees with Anthony Tolliver?during Sunday's victory over the Detroit Pistons. Irving had one of his quietest scoring nights of the season against the Pistons, finishing with just 16 points on 4-of-12 shooting. Irving came out of the game earlier than usual in the first quarter and was spotted removing his left shoe and stretching out his leg during a timeout. Irving did not reference any ailment after the game and playfully chastised himself for his shooting woes, saying he told himself, "Make a damn shot." This is only the second game Irving has missed this season. He...