United reduced the gap to leaders Arsenal to three points as Cristiano Ronaldo and Wayne Rooney scored twice and Louis Saha added a fifth in a one-sided clash at St James´ Park.
Keegan said: "I have said all along, we need 40 points this year, and we have got 28. Anybody who has not got 40 points can be relegated - and in the past, teams with 42, 43 have. To get to 40, we need four wins, or three wins and three draws."
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