Need to move on from Stokes' controversial dismissal - Steven Finn
Stokes was given out for obstructing the field, with the two opposite camps interpreting the incident in completely different ways.
While Australia believed that Stokes’ actions were intentional, England were adamant that the 24-year-old was only taking evasive action.
Stressing the importance of playing to their strengths, Finn stated that it will be foolish if they let the controversy get into their heads.
"I think we'd be foolish to let the Stokes dismissal nag away at us," he said.
"We have a young side - we have some quite emotional guys in that team.
"If we let that emotion come into our cricket, I don't think that it will serve us well.
"If we stick with the mantra of going out there and enjoying it, trying to show off and deliver our skills as best we can with a smile on our face, that will serve us far better than getting fired up and angry - because I don't think that will bring the best out of us."
By winning the second ODI at Lord's, Australia have taken a 2-0 lead, leaving England with a mammoth task of winning the three remaining games to claim the series.
Admitting that Australia outplayed England in the first two games, Finn urged England to step up and put on a fight against the world champions.
"It's in the past now. We lost (on Saturday) – Australia played better than us.
"Obviously, it leaves a bit of a sour note - but ultimately Australia played better.
"We have to be better in these next three games."
When Australia appealed against Stokes for obstructing the field, the decision was referred to the third umpire, who used various slow-motion replays to make his decision.
The stark difference was that in the real-time replays, Stokes’ actions looked instinctive, but the slow-motion replays painted a different picture.
Finn argued that every player's first instinct will be to protect himself when the bowler attempts to throw the ball back towards the batsman.
"I think everyone in the dressing room, when we saw it in real time, thought he was taking evasive action.
"The ball looked to be travelling towards the stumps.
"The fact that it was in slow motion didn't help Ben's cause.
"How often does the bowler feign to throw the ball but doesn't actually do it?
"But this time he did let the ball go - and by the time you realise the bowler has actually let the ball go and you are trying to get out the way, the first and foremost thing is that you're worried for your safety rather than worrying about where your stumps are.
"Ben said he was taking evasive action, and there's no reason not to believe him.”
The last time England won a bilateral ODI series against Australia was at home in 2012, when they beat the visitors 4-0.
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