Bruce hopes to close a deal for Sagbo this week.
He told the Hull Daily Mail: "We're in conversations.
"My chief executive is speaking with Evian and we're hopeful that we can get something done because he would be a good addition.
"He's a little bit different to what we've got. He's quick, he's direct and he wants to run in behind.
"It's hard talking about a player who belongs to another club but there has been dialogue and we'll see where it takes us. We'll be patient and see what develops."