Wolverhampton announced the lease of Diogu through its official website.
Last season, the midfielder also on loan rented for Porto under the guidance of the current coach Wolverhampton Nuno Eshpirit Santo.
"I am so excited. Wolverhampton is a big club with a rich history. I always had a goal to play in England and this is a good opportunity. It's good that I'm familiar with Nun, this will help me to get used to the team, "said Zhota.
"It's very hard to play in Championships, it's a difficult tournament with a lot of matches. But it will be a good experience for me ".
"I will always give my best for the fans' sake - I will run a lot and hopefully score goals, as well as give assistants".
Last season on the account of Diogu 35 matches and 9 goals for Porto.