"He's incredible, but the reality is in the last five years he's played few, really few", Guardiola told reporters ahead of Tuesday's league trip to Newcastle United.
It had looked like another routine three points at St James Park after Sergio Aguero opened to scoring after just 24 seconds.
"I think it's an issue that we have to speak with Vincent about - the club, him and his agent", Guardiola said.
Benitez saw Salomon Rondo equalise on 66 minutes before Matt Ritchie smashed home a penalty 10 minutes from time.
- Newcastle have beaten Manchester City in a Premier League game for the first time since September 2005, ending a run of 22 meetings without a win (D3 L19).
While Liverpool's focus this season is on the title, the Reds manager has some sympathy with his Tottenham counterpart Mauricio Pochettino who said this week a top-four finish is more important than trophies. It's more hard now, but we have the chances to do it and we know we have to win games.
"I said it a few times, I expect City to win every game", he explained.
Fulham hit back two minutes into the second half through a spectacular half-volley from defender Calum Chambers, before Aleksandar Mitrovic headed in an equaliser on 58 minutes. "I don't know what he'll do - I've not spoken to him and their future belongs to them - but if he wants to be then of course he can". If you do you are not in the final of the Carabao Cup. We have to win.
"We will play with a right back". It's less pressure, they can give their best with freedom.
I don't see Klopp making any other changes to his frontline so we should see Roberto Firmino starting along with Sadio Mane after both players got on the score-sheet against the Eagles. "Sometimes things go your way and sometimes they don't - we had just won eight games in a row and scored 30 goals without reply but sometimes things don't go your way".
"I don't exactly know why Jamie has such a good record against us but I would say minus one goal because that was the only one he shouldn't have scored". Even if they should now win all their remaining 14 games, City would fall short of the 100 points they achieved last season.