Roy Keane has been told he was "completely wrong" to criticise Tottenham Hotspur duo Serge Aurier and Danny Rose.
Keane said the pair were "dreadful" during Tottenham's loss at Anfield after Aurier had conceded a late penalty for a clumsy challenge on Sadio Mane.
"The two Tottenham full-backs were dreadful," Keane said on Sky Sports. "Dumb and Dumber, I'd call them.
"I thought they were really poor. You can't compare them to Liverpool, the two lads who are absolutely fantastic."
However, former Liverpool player Stan Collymore believes Keane's comments were wide of the mark and said Spurs could easily have won the game themselves.
"I like and respect Roy Keane but I thought he was completely wrong when he laid into Tottenham’s full-backs after their defeat by Liverpool," Collymore said in his Mirror column.
"Spurs played well and if Heung-min Son’s effort had gone in rather than hitting the bar it would have been 2-0 and Liverpool wouldn’t have been winning because it would have been too much of a mountain to climb."
Collymore also commented on United's win at Norwich as he praised Marcus Rashford's performance after the 21-year-old's scrutinised start to the season.
"Marcus Rashford's goal for Manchester United against Norwich made a mockery of suggestions he can’t play as a centre-forward," Collymore said.
"Touch, movement, finish: tick, tick, tick.
"Jose Mourinho reckons Rashford doesn’t have what it takes to play through the middle but maybe if he and some of the United coaches had actually coached the lad as a striker, he’d have scored plenty more of those types of goals.
"Ole Gunnar Solskjaer should play him and Anthony Martial at the top of a good, old-fashioned 4-4-2, let them have 10 games together as a partnership and watch them thrive."
