LONDON, Jan 13 (Reuters) - Manchester City boss Roberto Mancini was thrilled by his side's first league victory at Arsenal since 1975 but the gloss was slightly taken off by a harsh red card to captain Vincent Kompany. Mancini said the champions would appeal referee Mike Dean's 75th-minute decision in Sunday's 2-0 victory, which followed the Belgian centre back's tackle on Jack Wilshere where he won the ball but with two feet just off the ground. "We do appeal for Vincent. ... More...