The Guardians placed Lively on the 15-day injured list Thursday with a viral illness.
Lively and Xzavion Curry are opening the season on the shelf due to a respiratory virus that made its way around the Cleveland clubhouse during spring training, according to MLB.com. Lively shouldn't need much longer than the minimum 15 days to regain his conditioning and get ramped back up, and he'll likely be ticketed for a long-relief role once available. He could become a rotation option down the road if Carlos Carrasco or Logan Allen struggle.