Torreira produced another impressive display for the Gunners and received praise from both Ferdinand and Keown after the draw.
Arsenal signed the Uruguayan midfielder from Sampdoria in the summer and has developed into a key player under new manager Emery.
The thing with Torreira is he knows that position, former Manchester United and England defender Ferdinand told BT Sport.
Theyve brought in many players to play in that position over the years to almost make things tick. But they were all pretenders.
Torreira is not someone who is going to split a defence with a pass. Hell play the shorter passes to keep the momentum of the game going.
He wants to get on the ball so he can make the other plays like Ozil. He can shield and thats an important role in a team like this that wants to attack
Arsenal hero Keown added: We used to use our midfielders as barriers. Thats what Torreira does. He could be the glue for this Arsenal team.
Emery was proud of his teams performance against Liverpool, who were joint-top before this weekends round of fixtures, but said Arsenal maybe deserved the three points.
We wanted to win but the performance is good, we push and we work the match, doing our tactics and with our supporters pushing us with energy, he said.
For the supporters it is a great match and a good spectacle but I am only 50% happy because we wanted to win.
Today the balance was good in our speed and intensity. We worked very well for the 90 minutes and the two goals is the difference in the match.
This is a point and a draw, maybe we deserve a little more.
Every match is a good test for us, it is very important we continue our process and not to lose, our test is Thursday against Sporting Lisbon and Sunday against Wolves, to be in a good position in the table.
I think today the supporters pushed a lot for us and the players feel it on the pitch to help us and that is a good combination.