Neither side could find the breakthrough as goal-shy Liverpool and Premier League-leaders Manchester United played out a 0-0 draw at Anfield.
Liverpool forward Roberto Firmino lashed the best chance of the early stages wide when Andy Robertson was in a better position in the box.
At the other end, Bruno Fernandes curled a free kick just the wrong side of Alisson's post during a first 45 minutes lacking clear-cut chances.
Both Liverpool and United were similarly toothless for much of the second half, and it took until after the hour mark for Alisson to have to make a save.
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