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Chelsea manager Frank Lampard said his side need to improve at both ends of the pitch after they were held to a 2-2 draw at Bournemouth on Saturday.
Marcos Alonso opened and closed the scoring at the Vitality Stadium, either side of second-half goals from Jefferson Lerma and Josh King.
Lampard told reporters after the game: "We have to dig in at the moment. There are question marks in both boxes. We have to get that right."
The Blues had 23 shots on Saturday, six of which were on target.