Liverpool are flying high, with 20 points in nine games after their 3-0 beating against Leicester on Sunday.
They did it with an exhausted squad, with Trent Alexander-Arnold, Virgil van Dijk, Mohamed Salah and Joe Gomez missing.
But the Reds have established their team are strong enough to cope as some title challengers have emerged.
Chelsea and Tottenham appear to be favorites to fight for the crown, with Jose Mourinho leading the table and the Blues in third.
And Robertson claims they are in charge, with Leicester – who are fourth after their weekend loss.
He told Sky Sports: “We don’t set ourselves a point total but it would be nice to get 99 again but I think this season will be much closer.
“I think the teams have improved, you see Tottenham, you see Leicester, you see Chelsea – they’ve all improved so much. ”
It comes after a great year for the Reds, albeit under strange circumstances amid the Covid-19 pandemic.
Liverpool have ended a 30-year wait to win the title, but that wasn’t all for Robertson to celebrate.
He added: “I can’t help but look back to 2020 with great memories. I ended a 30-year wait with his amazing squad to win the title for this great club.
“And I managed to help end a 23-year wait for my country. It’s the most moving I have ever experienced after a game, in terms of the touch of tears.
“We’ve been through a lot as a country, us and the fans and it’s been a long, long wait.
“We’ve been hit hard by injuries so far this season and some of them have been nasty and long term.
“It’s unfortunate, but I guess that’s why we have a big team because we have to call on them. “