Rodgers believes the Dutchman will find English football extremely challenging.
After being beaten by his Manchester United side on Sunday, Liverpool manager Brendan Rodgers has sent a message of warning to opposite number Louis van Gaal.
The Reds were defeated 3-1 by United in the International Champions Cup in the USA, but Rodgers believes it will be a completely different story once the clubs return to England.
“I think what he’ll find is the competition in this league will be different to any other league that he’s worked in,” the 41-year-old was quoted by the Mirror.
“In a lot of the other leagues, there are one or two teams and those are the teams that are expected to win.
“This is a league where the top team plays the bottom team and on any given day you can lose.
“You don’t get that a lot in the other leagues. I think the competition will probably take him by (surprise), and that’s from foreign managers I have spoken to over the years.”
Van Gaal will take charge of his first Premier League match and competitive game as boss when his side host Swansea City at Old Trafford on the opening day of the season.
The club is reeling after their worst campaign in over 25 years in 2013/14, when they finished seventh and failed to qualify for European football for the first time since 1981.
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