Justin Langer has declared David Warner back, noting the look of determination in his eyes to succeed again for Australia.
Fresh off his first century for Australia in almost 18 months, Warner will head into Saturday's clash with Sri Lanka as one of the prized wickets of the tournament given his early form.
Just three games into his return from the ball-tampering scandal, Warner sits second on the World Cup run-scoring charts with 255 at an average of 85.
Notably, he's back to playing with his renowned intent, pushing singles and punishing anything that erred in length or width in his 107 against Pakistan.
"You can see in his eyes he determined he is to be back playing for Australia," Australia's coach Langer said.
"When you score a hundred, it is almost like there is no better feeling in the world.
"He can only explain how he felt, but for us if you score a hundred it's almost like, 'righto, I am back, I am back'.
"That's a good thing. That's a nice feeling I am sure for him and it's a nice feeling for us."
It's long been noted that for Australia to win the World Cup, they need Warner to succeed.
The left-hander is Australia's second fastest-scoring regular opener of all time, and has the ability to take the game away from teams.
Langer doesn't want to put any expectations on what heights he could reach at the tournament, as he noted he won't "mess with mother cricket".
But he is, however, adamant he never had any concerns about Warner's ability to re-find his groove, after he lacked runs in warm-up games and hit his two slowest ODI half-centuries to start the campaign.
"He's done an unbelievable job for the team in all games we have played so far," Langer said.
"On a different ground in different conditions (against Pakistan), his strike rate was a bit higher but I have been pleased with the way he has gone the whole way.
"It was great to see him get his hundred. You saw how emotional he was and how much it meant to him. It meant a lot to all of us as well."
Australia travelled to London on Thursday for The Oval clash, and trained on Friday.
They have won three of their opening four, pleasing Langer considering he doesn't believe his team has yet played their best cricket.
However, he will have a call to make selection calls ahead of Saturday's game.
Allrounder Marcus Stoinis (side strain) is still fighting to prove his fitness, meaning Glenn Maxwell and Aaron Finch will again likely have to make up 10 overs between them.
Langer is unlikely to opt with five bowlers, meaning if legspinner Adam Zampa returns either Kane Richardson or Nathan Coulter-Nile will make way.