Liverpool boss Jurgen Klopp demands his players speak English otherwise they could eventually be on their way out of the exit door.
This is according to Alan Redmond, Liverpool's former language tutor and co-author of 'Oxford English for Football'.
It is not just on the pitch that Klopp demands a lot from his players. Settling in on the pitch with new team-mates is hard enough, but for Liverpool's signings, they need to adapt to the English language quickly.
Both summer signings Fabinho and Naby Keita are limited in their ability to speak and understand English. And according to Redmond, Klopp will be on their case.
'It's hugely important,' Redmond told ESPN FC. 'Ten times out of ten I find that the best players have an appetite to learn.
'I won't name names, but I can think of seven or eight occasions where players turned up and you could see they had no interest in learning the language.
'Usually in the first or second transfer window they were out of there on loan or permanently.'
During his first few weeks in charge, Klopp was on the case of Alberto Moreno, telling the Spaniard he wants him to fully learn English.
Meanwhile, Klopp was impressed by Alisson's grasp of English following his big-money move from Roma.
Helping players settle in is a routine drill for football clubs and they provide support as much as possible, by having staff in place to find areas for the new signings to live for example.
But learning English is completely dependent on the players and their willingness to adapt to the new culture.
As learning the language is imperative for Klopp, the lessons begin with words and phrases that help the player do what they are ordered to do on the football pitch.
'The player has got to be able to understand his coach and the player has got to be able to understand things in general life,' Redmond says.
'The priority in the initial stages was that they could understand the coach. We were giving them high-frequency words and expressions that coaches and teammates may use.
'I speak Italian, Spanish and French. The key for me with every language is verbs.
'You would usually find that when the players have no English, which sometimes happens, when they're trying to understand teammates, they're trying to usually spot one or two words in a sentence that'll help them identify what the hell he's talking about. Usually the verb would be the crucial word.'
Klopp will be hoping Keita and Fabinho's English has improved by the time Liverpool take on Tottenham at Wembley on Saturday, September 15.