The former Liverpool man believes Michael Carrick is more myth than legend, and would be a liability for lesser teams.
Carrick has come in for praise for his performances this season, with him being credited with playing a key role in the United midfield as they have returned to the top four under Louis van Gaal.
He has also played an important role for England, starring in the second half of Tuesday’s draw with Italy in Turin, with many crediting him with having turned the tide of the game in his side’s favour.
Collymore though, says that Carrick is more of a myth than a legend, labelling him a marmite player.
“Carrick is a Marmite player,” wrote Collymore.
“Some people think he's in the Xavi-Andres Iniesta bracket, while others say he isn't worth it. [He] plays well in good teams with good possession who can get him the ball.”
According to Collymore, the midfielder is still a weak link because it is easy for attacking players to turn him over, with the player unable to get back and protect his defensive in the manner that Nemanja Matic does for Chelsea.
Instead, he says that this weakness makes him a liability for his sides, and if he were to play for a team in the bottom half of the table this would be more obvious.
“If Carrick played for Barcelona he would be magnificent, but if he were with a team in the bottom half of the table he would almost be a liability,” added Collymore.
“Where he gets found out is when he gets turned over easily, and he cannot get back to protect. That means he becomes a bit of a liability because he is not a player who can get around and engage others, like Nemanja Matic.”