Gohouri studied Wigan teammates while in Germany
The Ivory Coast defender joined the Latics earlier this season after being released by Gladbach.
He told the Wigan Observer: "In Germany, every Monday night they would show all of the Premier League goals from the weekend, which I used to watch even before I came here.
"So I already knew quite a bit about Wigan. I knew about Titus Bramble and Charles N'Zogbia from watching them play on TV.
"Coming to Wigan is a big step for me. I always wanted to come to play in the Premier League, and I am grateful to Wigan for giving me this chance. Now it's up to me."