"I'm expecting to play and we'll see what happens," he told the British media. "The body is good and I'm still relatively young.
"These decisions are not made to spite me. If a decision is made to rest me, then it will have been made for the long-term future.
"But I often find it's the occasions when I'm rested or not playing for whatever reason, you realise how much you enjoy playing, how much you want to play."
Itoje was not expected to play in Saracens' English Premiership season opener against Northampton but was drafted in because of injury problems in the back row.
He was not rested till Saturday's win over London Irish, but the 23-year-old is relishing his time on the field.
"Saracens have been very good to me, so whenever I can help them I will even if it cuts my holiday short a little bit," he added.
"I'm doing my own extra bit of recovery. I am spending a bit more time in the pool. I make sure I have my pool recovery before every game, which is something that I didn't do last year."
England are training in Portugal this week ahead of the test against Argentina on Nov. 11.
(Reporting by Hardik Vyas in Bengaluru, editing by Ed Osmond)
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