The Buffalo Sabres signed defenseman Nikita Zadorov to a three-year, entry-level contract.The Sabres selected the 6-foot-5, 220-pound Russian defenseman with the 16th overall pick in the 2013 NHL Draft. Zadorov, 18, has played in three exhibition games so far this season and recorded his first career goal in the game against Toronto on Sunday. “I think it’s great. It’s a big experience for me to play here in NHL exhibition games,” Zadorov told Sabres.com. “I’ve played three games and I think I did a pretty good job. I just want to try and make the team.”