But Lorient have a history of producing good quality players - including Arsenal defender Laurent Koscielny, who made the same move as Guendouzi in 2010 - and the midfielder is certainly a player the Gunners can bank for the future.
Tottenham are ready to scupper Arsenal's plans to sign Andre Gomes after joining their rivals in the race to sign the Barcelona midfielder this summer, according to reports via TeamTalk. But will be open to new signings in case "a big opportunity" presents itself. "My idea is to know every player and to know, also, the personality of the players", Emery said". We signed the players who we needed. "He is an important player for me".
It has been Arsenal's most efficient and productive summer transfer window for many years and there is still a few weeks left. The season begins with a game against Manchester City on August 12.
The Arsenal boss also made it clear that he wants Aaron Ramsey to sign a new contract with the club, and that he has conveyed that message to chief executive Ivan Gazidis, recruitment head Sven Mislintat and head of football relations Raul Sanllehi.
"We've spoken about that", Emery responded when asked about who would be captaining the side when the season starts in August.
They face a tough Premier League opener against champions Manchester City on August 12 with Emery, who left French title holders Paris St Germain at the end of last season, trying to build a team that can compete for a top-four finish.
"It was a tactical, technical decision", he said. I'm very happy with him.
'For me, every day, every training session, he has the ambition I want. "I want to work with him".
The claims had come as a surprise to many, with Ramsey expected to be a key member of Emery's squad from the moment he was confirmed as Arsene Wenger's successor.