Carlo Ancelotti insists he still “has trust” in dropped England keeper Jordan Pickford.
Pickford is under fire for his tackle on Virgil Van Dijk, and the Wearside born ex-Sunderland star, has had difficult games at St James’ Park.
Olsen played well despite Everton’s defeat, including good saves from Sean Longstaff and Allan Saint-Maximin.
Ancelotti said: “We have a lot of trust in Jordan, no doubt.
“The performance of Olsen was good. He has experience and was in good control all game.
“The reaction of Jordan was a player who understood he wouldn’t play today. I explained I wanted to give Robin an opportunity and he will be back the next game against United.
“Olsen played well and he will play again. But not for the game against United. Why is it complicated? Not for me.
“I am used to rotating keepers. It happened in Real Madrid and Napoli. It will not be the last time he plays, Premier League or cup.
Ancelotti’s side were poor, but they were missing the likes of Richarlison and James Rodriguez.
Was the decision to drop Pickford the right one by Ancelotti? Have your say here.
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He added: “It was a game without space and opportunities until the penalty We had to avoid mistakes.
“But the game changed when we gave them a penalty. After that the game was complicated. We had a good reaction but not good enough.”
Callum Wilson opened the scoring for Newcastle in the second half after he was fouled by Andre Gomes during a corner.
The striker then added his second of the match in the 84th minute before Dominic Calvert-Lewin pulled one back for the visitors in added time.
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