Chelsea are considering whether to sell Willian after Barcelona made a renewed bid to land the Brazilian - but they are digging their heels in over Callum Hudson-Odoi and Bayern Munich's quest to land him.
"We scored in 10 minutes by attacking the spaces behind the line with Pedro, and I remember very well one time at the beginning of the second half the same situation with Willian".
Hudson-Odoi's long-term future remains in doubt as he refuses to renew his Blues contract with just 18 months remaining, leaving Bayern Munich hopeful that they can secure a £35 million deal for the 18-year-old in January.
Dortmund come up against RB Leipzig next Saturday evening for a chance to further tighten their grip on the German league title.
Sarri said: "Of course, if Morata will go to another club we need a replacement". Lampard has admired Hudson-Odoi's performances from afar and hopes the England Under-19 worldwide is still a Chelsea player when the January transfer window closes. The likes of Jadon Sancho going to the Bundesliga and doing brilliantly has helped, as has the English youth team's successes on the world stage and people now know these young players are good enough. So I think that he was in trouble, maybe he was exhausted, I don't know.
"It's short only for one position at the moment, because I think [Hudson-Odoi] is improving". It depends on the club decision.
"I think that it's not professional because they are talking about a player under contract at Chelsea", he said.
Sarri, though, has digged his heels in over Hudson-Odoi, and he is not impressed with Bayern Munich's continued pursuit of him.
"Hudson-Odoi in one or two months will be at the same level as the other players".
Sarri said: "We need to solve this problem". [We did it better] today with the wingers, in attacking spaces more than the box. "We need to improve in the last 20, 25 metres".