Chilwell proved the matchwinner on the day.
"Brentford asked a lot of different questions," Chilwell confirmed to the club's website.
"They like to play the ball forward quickly. They've got some players up front who are very good in the air and like to flip balls on, hold the ball up, bring other people into play, win second balls. It's something we're not used to playing against as much so it causes a few different problems, but in the end we've got the clean sheet.
"It was very tough, their fans are behind them, they were growing in belief as the game went on, we were getting tired, but our mentality was there, we were putting our bodies on the line.
"In the first game after internationals, the performance isn't anywhere near as important as a result, and we got the result."
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