Reigning champions United play five top-flight matches between now and mid-February, a sequence that starts with Sunday's trip to third-placed Chelsea and ends with a clash with current table-toppers Arsenal at the Emirates Stadium.
And Vidic said in an exclusive interview in the latest issue of Inside United magazine: "We have to win regularly and in the next month we will know exactly where we are.
"By the end of January and start of February we will show what our position is and what our capability is in the Premier League.
"Then, of course, the Champions League starts up again. This is an important time for us and we all want to do well."
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