Manchester City midfielder Rodri believes they can Liverpool are a class above the rest of the Premier League.
The two teams, who are locked in a fierce battle for the Premier League title, have also won a combined four League Cups and one FA Cup in the same period.
"I think it's going to be difficult to find a team in the future at the level of the current Manchester City and Liverpool," Rodri told City's official club website.
"We will see, but I think both teams have been built with two different styles of football, but are similar in terms of efficiency.
"Without a doubt, Liverpool is the best opponent I have ever faced."
The 25-year-old has won the Premier League and two League Cups since arriving in England.
"Playing in the Premier League is incredible and even more so playing for Manchester City," he added. "We have shown it in the last few years in the competition.
"The Premier League is so demanding, so when you win the trophy, it is very rewarding and makes you feel proud. It's great playing in this country of football, with all the passion from all the fans."