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Watford goalkeeper Heurelho Gomes says manager Walter Mazzarri's difficulty speaking English made communication difficult at Vicarage Road this season.
Mazzarri was told last week that he would be out of a job after Sunday's final game, a 5-0 defeat to Manchester City.
Watford finished just one place above the relegation spots in 17th, and Gomes blamed the seasons' woes partly on the Italian manager's inability to instruct his players.
"It is important to speak English if you are a manager," Gomes told the BBC.