The Foxes have lost and drawn in the Premier League since the restart, while they were also knocked out of the FA Cup by Chelsea on Sunday.
"We are not that concerned about that at all [dropping out of top four]," Soyuncu told Sky Sports. "We only played two games, we drew two. Yeah, it would have been better if we'd won them both but we are where we are.
"We are going to do our best to play better and I believe we will do. We are a good enough team, we are motivated and we will be going forwards with these positive ideas."