Goal recently revealed that the Gunners will sign Torreira, who has started in Uruguay's last two World Cup games, from Sampdoria once the midfielder's campaign in Russia is over.
The 22-year-old will become Unai Emery's fourth signing of the transfer window, with deals for Sokratis (Borussia Dortmund), Bernd Leno (Bayer Leverkusen) and Stephan Lichtsteiner (released by Juventus) already wrapped up.
"There will be people that will accompany him," he told Teledoce.
"He won't be alone. It's a big change [going to England] and we don't want to think about it yet because we're scared.
"The truth is it's tough to manage the language, adapt to the [London] society and customs and at the same time not lose ours.
"But there's a whole programme getting readied for Lucas."
Uruguay next face France on Friday, July 6 in the quarter-finals of the World Cup.