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Sportsmail columnist MARTIN KEOWN answered YOUR questions after another interesting week of Champions League football, including Arsenal's disappointing 3-1 defeat at home to Monaco on Wednesday night.

The former Gunners and England defender analysed the tie at the Emirates Stadium, with subjects ranging from Per Mertesacker's abject performance and Arsene Wenger's tactics to whether Olivier Giroud is lacking quality in the big games.

Also on the agenda was the small matter of the Capital One Cup final this weekend as Chelsea play Tottenham at Wembley, as well as the quality of English football.