The west London side's defensive display was aided by the return to the starting line-up of summer signing Mendy following an injury picked up on worldwide duty, with the Senegalese shot-stopper producing an assured display on just his third appearance since signing from Rennes.
"I spoke to the players about game management", Lampard said.
'I will always work closely with him and I remember being in the same position myself towards the end of my career, in the past year in the Premier League. We want to create more chances; I want to help with that.
Chelsea have kept just three clean sheets this season - against Barnsley, Crystal Palace and Sevilla - and it is no coincidence that Silva has started all three matches.
"I mentioned before about concentration, focus and discipline and that becomes even more important here than other competitions because of the level of Champions League", Lampard added.
"We're going to get better, I keep saying the same thing, but we haven't had the personnel in there playing regularly, getting relationships, working off each other".
'I think we showed that defensively we're a very strong outfit, ' said England left-back Chilwell of their stalemate with Sevilla, last season's Europa League winners.
Out-of-form Kepa Arrizabalaga was dropped to the bench on Mendy's return after another afternoon to forget in Saturday's 3-3 draw with Southampton.
Summer signing Edouard Mendy, like Silva, impressed in goal as he continues his bid to be undisputed No 1.
Lampard will be looking for better in European competition when his team takes on Sevilla at home as they kick off a campaign that will also see them take on Group E rivals Stade Rennais and FC Krasnodar.
"We made a lot of good decisions tonight, so it's a really nice place for us to build from".
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