The former Schalke stopper has just helped Liverpool win the Champions League, but there's doubts about him committing to a new deal.
Asked about returning to Germany, Matip stated: "In football, nothing is impossible. Currently I have two years contract with the Reds. After initial difficulties and injuries, I feel comfortable in Liverpool now."
Regarding Schalke, Matip says: "There is still a lot of room for Schalke in my heart. That never stops. Accordingly, my worries about this club were very big. I try to watch every single game on TV. It can only get better for the new season."