Luzardo (back) won't start Saturday's game against the Mariners, Daniel Alvarez-Montes of ElExtraBase.com reports.

Luzardo experienced back tightness in his last start and was pulled after 77 pitches and showed decreased velocity. While the Marlins initially listed Luzardo as their probable pitcher Saturday, they'll refrain from putting the 26-year-old lefty on the mound against Seattle and give him some extra rest. For now, Luzardo is scheduled to make his next start during a four-game series at Philadelphia next week.