Lampard’s men have only lost once this term, with the £220million summer recruitment drive starting to bear fruit – but the Blues boss has told his squad not to think they have cracked the Premier League code.

Lampard insisted Chelsea are yet to close the gap on recent Premier League powerhouses Liverpool and Manchester City, and will keep reiterating that to his players.

“That was our best performance of the season so far for sure,” said Lampard.

“We’re in a good place, but the level of Liverpool and Manchester City means you have to be in that good place every week.

“That’s the gap we have to close so I won’t get carried away with that.”

Brazil stalwart Silva bagged his first Chelsea goal, and captained the Blues for the first time, following his summer free-transfer switch from Paris St Germain.

At 36 the centre-back appears as fresh as ever and in top form, leaving Lampard greatly impressed by his immediate impact at Stamford Bridge.

“I knew the player he was when he came here, because of the career he’s had,” said Lampard.

“It’s his level of performance since he’s been here; his influence on the group, his persona, his preparation between games, how he attacks training, how diligently he looks at opposition.

“He’s been brilliant, I can’t say enough about him today. He’s had a big influence in the short time he’s been here.

“The way he manages himself in between games, I’m very open to making sure we keep him as fresh as possible. He is fit, he’s fresh and it’s rubbing off on others around him.”

Blades boss Wilder believes Silva’s goal should have been disallowed, for a block in the area in the build-up to the Brazil defender’s header.

Wilder insisted his players must quickly learn the “dark arts” to find their feet in their second season in the Premier League.

“We were still in the game going up to 75 minutes, but then we got done on a block on the corner,” said Wilder.

“For my team it’s a right difficult situation. At times maybe I’m a bit naive and we’re not being good at the dark arts.

“It’s a real predicament that I’m in as a manager at the moment.

“That’s not decided the game because they were better than us, with world-class players that are playing at the top of the game.

“But there’s a block in the penalty area and then he scores with a header.

“We’re in the game at 2-1 and we’re out of it at 4-1. The players have to pick themselves up together, they’ve been shaken up a little. It’s been a tough run.

“I thought Chelsea were outstanding. What a job Frank Lampard’s done, in his second year.”