Roslovic is having a great season with Manitoba, having scored 15 goals and 35 points in 31 games.
The 20-year-old one of Winnipeg’s first-round picks in 2015, taken 25th overall.
The American made his NHL debut last season, playing one game for the Jets in April.
Tanev suffered a lower-body injury in Friday’s win over the New York Islanders.
The 25-year-old has three goals and 10 points in 39 games this season.