sentences:  Defeat against Sevilla at the Ramón Sánchez Pizjuán Stadium was Arsenal's first loss since April 2007, ending a run of 28 matches undefeated in all competitions.The result moved them down into second place, and in spite of winning their final group match against Steaua at home, Arsenal ended two points behind group winners Sevilla.Arsenal was drawn against Champions League holders Milan in the knockout stages.