LEAGUE ONELEE Johnson wants his high-flying Sunderland side to remain grounded.The Black Cats continued their promotion push with a 2-0 victory at rivals Portsmouth on Tuesday evening.“I thought it was a superb performance,” Johnson said. “It is just about building on the philosophy and fine tuning what we are doing.“If you start looking at the outcome too early then you can come unstuck. It is important we continue to be relentless in what we have been doing extremely well.”

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