Arsenal may have stretched their lead at the top of Premier League to seven points on Saturday, but the goalless draw at Nottingham Forest will have left many Gunners fans reflecting on another missed opportunity. Manchester City's 2-0 loss at Old Trafford offered Arsenal the chance to move nine points clear at the top of the table, but Mikel Arteta's side were left frustrated for the second league match running. Having drawn 0-0 against Liverpool last week, it is the first time Arsenal have