Jamie Carragher says Joe Gomez, Jordan Henderson and Georginio Wijnaldum’s places in the Liverpool first team are under threat due to the quality in the squad.
The latter duo started in the 3-1 win over Arsenal on the weekend, before Wijnaldum was replaced by James Milner in the 69th minute.
Gomez, who was a first team player until his injury last season, was named on the bench as Joel Matip started ahead of him and even got on the scoresheet.
Carragher believes that four of the back five including the goalkeeper pick themselves, but the centre-back place alongside Virgil van Dijk is up for grabs.
Additionally either side of Fabinho in midfield is up for grabs, with Henderson, Wijnaldum, Milner and Alex Oxlade-Chamberlain all battling it out for two spots.
“I think this fella [Matip], because you’re alongside Virgil van Dijk, he doesn’t get talked about a lot. That’s normal, the other fella next to him is a superstar,” Carragher told Sky Sports.
“But I couldn’t believe he didn’t start the season. And his performances at the back end of last season were outstanding. And actually when he’s come in I think he’s actually made a difference to Liverpool.
“Obviously Joe Gomez can play right-back or centre-back, but for me at this moment it looks a bit more solid with Matip in there. He should be [first choice]. I think he is right now.
“Liverpool’s back four and goalkeeper picks itself and there’s just one position – who is going to play alongside Virgil van Dijk.
“And you need that within a squad. I always feel in a team there should be seven or eight absolute starters who know they are playing as soon as they are fit and everyone knows they are playing, and there should always be three or four positions up for grabs.
“In this Liverpool team there are three or four positions up for grabs – the centre-back position and probably the centre-midfield positions either side of Fabinho.
“I wouldn’t say they are up for grabs, the players who have got the shirt now [Jordan Henderson and Georginio Wijnaldum] are first choice but you could easily see Alex Oxlade-Chamberlain going in there, Naby Keita when he’s fit, James Milner.
“The front three picks itself but you should always have three or four within a team who are up for grabs. Centre-back is one of them, at this moment it’s Joel Matip and I don’t see that changing.”