But, he need not to have anxious as West Brom's lone strike through a Jay Rodriguez's header from a Nemanja Matic's poor clearance in the United's vital area finally handed them their third title in seven years.
Jose Mourinho's side had kept the title race just about alive with a dramatic 3-2 derby win in their previous game, but a dismal performance against the league's bottom club means they can not now finish higher than second place.
United manager Jose Mourinho asked for consistency from the France worldwide this week following his two-goal performance in last weekend's win over Manchester City.
"We didn't play simple, everything was slow, one more flick, trick, turn".
When the pressure has been on them to deliver, however, as was the case here as well as against Sevilla and City at home, United have not just fallen short but done so with a whimper, with no clear idea. The last Premier League title that I won was not 20 years ago, it was three years ago and I know how to win.
Sergio Aguero has led the way in front of goal
"We still need to improve to reach the last level which is the most hard thing". "The amount of goals, chances and points, to do that in the Premier League, with the contenders we have, is because the players are so good". Maybe also City will invest massively and they don't let the others close the gap to them, I don't know.
And it was achieved by playing a brand of football that has had the purists purring all season, with City racking up 93 goals so far and on course to top the 100-point barrier.
Based on three points for a win, Manchester City's current points tally of 87 is the most by any side in English top-flight league history after 33 games of a season.
Despite completely dominating the first-half, there were some nervy moments as Tottenham got back into the match, until Raheem Sterling scored City's decisive third.
City did not lose a game until January - against Liverpool - and drew just twice until that memorable clash at Anfield, while smashing five past Liverpool at the Etihad early in the season, as they stunned opposition, supporters and critics alike with their performances.
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