Frank Lampard warned Chelsea to learn a "big lesson" from the mistakes they made before Tammy Abraham's last-gasp strike rescued a thrilling 3-3 draw against West Bromwich Albion on Saturday. Lampard's expensively assembled side were torn apart in the first half at the Hawthorns as Callum Robinson's brace and Kyle Bartley's goal left Chelsea 3-0 down. Chelsea captain Thiago Silva was guilty of an woeful blunder on his Premier League debut when the former Paris Saint-Germain defender gifted the ball to Robinson for his second goal. But Mason Mount reduced the deficit soon after the break and Callum Hudson-Odoi got Chelsea's second before Abraham equalised deep into stoppage-time. It was a much-needed show of spirit from Chelsea after their defeat against Liverpool last weekend.

The prospect of a second successive loss had Lampard visibly fuming on the touchline in the first half, but Chelsea responded with a much-improved display. While Lampard will be relieved by evidence of Chelsea's attacking potency, there must be questions about their shambolic defence and he admitted they need to improve significantly. "You can't legislate for the mistakes that there were today. You can have as many meetings as you want but with those mistakes you give yourself a mountain to climb," Lampard said. "The question was how much character would we come out with second half. I always felt we could do it, but it is still two points lost. "We lacked a bit of urgency in the team. It is a big lesson for us."