Thiago feels both players are currently playing out of position.
He said: “Fabi [Fabinho] is an amazing player as a centre-back and he's even better as a number six. I think with him at the back he gives us the security as a number six, eight or 10 to make the team play a bit more.
“For me our number 10 is Bobby Firmino. He has lots of great characteristics and skills to arrive into the area but also come back and play and turn. He's like an old number 10.
“All the teams are trying to reach the winning teams from last season, in the Premier League they're trying to reach Liverpool.