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The Blues lost 3-1 to an out-of-form Arsenal side on Boxing Day.
According to former Premier League striker Alan Shearer, Chelsea lacked creativity, intensity and quality in the final third against Arsenal.
“They lacked creativity,” Shearer said on Match of the Day.
“It wasn’t until the 85th minute where they had an effort on target. A lack of intensity and drive and quality in the final third.
“When you look at some of the players on show in the attacking third, then this could be a worry for Frank.
“[Timo] Werner, who was dragged at half time, didn’t offer anything in that first half, got into one or two decent positions.”