Everton manager Marco Silva admits his side need to work on finishing off matches after labouring to a 2-1 FA Cup win over League Two leaders Lincoln.

Despite going ahead though Ademola Lookman – with his first goal in 394 days – and Bernard, with his first for the club, inside 14 minutes they were pegged back by Michael Bostwick's close-range finish and struggled to close out the game.

However, having progressed to the fourth round for only the second time in the last five years, Silva was satisfied.

"First we achieved the main thing, to play in the next round," he said.

"For some moments it didn't look like we would have a quiet afternoon. We started with intensity and some good moments but after one moment we lost the focus and gave them some hope.

"It is something which has happened in the last few games and it is something we need to stop as soon as we can.

"In some moments when everything goes well for us, even in our defensive moments, we are comfortable.

"When you don't achieve the good results, the confidence is not the same. We have to be more focused because in one moment everything can change.

"We scored twice but they didn't do anything to score a goal and we gave that option to them. We need to work to be more strong."

Lincoln boss Danny Cowley was pleased with the way his side responded to going 2-0 down.

He said: "I think we can be proud of our efforts. When you are 2-0 down after 15 minutes at a Premier League club, you fear the worst – but we have a resilient, gritty, determined group and we showed all those qualities to get back in the game.

"We scored and it gave us the confidence to go toe-to-toe with Everton.

"There was a 30-minute period in the game when they didn't have a shot on target and that's an achievement against a Premier League side.

"They are Premier League players, have a world-class manager and they have tested us to the hilt."