Ottawa's first-round pick (No. 17) in the 2013 NHL Draft, Lazar has seven points in 26 games for the Senators, including his first NHL goal Monday against the Buffalo Sabres.
"I knew there was a possibility, it wasn't ruled out," Lazar told the Senators website. "I had a good talk with management this morning and we feel it's the best for my long-term development. It’s a great opportunity for myself. It's going to be a pretty exciting time.
"For me it's about gaining so much needed confidence and maybe finding my scoring touch. I know I got the one goal in Buffalo but if I can fill that here, if I line up beside someone like Connor McDavid, it's going to be great exposure out there and a lot of fun."