Liverpool have stayed resolute that Brazilian playmaker Coutinho – who has handed in a transfer request – won't be sold in this summer window while Borussia Dortmund suspended Dembele after the forward neglected to appear for training in the midst of connections with Barcelona.
But, Segura communicated that deals for the two players should be possible before the summer transfer window closes.
"We are near Coutinho and Dembele," he said on Catalan TV channel TV3.
"We are talking about their deals yet don't know when it will be finished."
Inquired as to whether he anticipated that they would sign the two, he included: "Yes, we expect it."
Reports in Spain on Wednesday proposed Barca had concurred a charge with Dortmund for French winger Dembele. Barca are hoping to supplant Neymar following his stunning world record transfer to Paris St Germain, and their requirement for reinforcement was clear as they lost 2-0 to Real Madrid on Wednesday night, finishing a 5-1 total rampage to the Spanish and European champions.
"We know we need to reinforce this group and that is the thing that we are doing," Segura included. "We need to help the group."