Team officials said Monday that Mack broke his fibula in the second quarter Sunday against Pittsburgh. Mack's surgery is being scheduled and a timetable for his recovery will be determined after the operation.
Also, Browns defensive end Armonty Bryant suffered a season-ending knee injury. Bryant tore knee ligaments in the first quarter of Sunday's 31-10 win. Bryant started for Phil Taylor, who had knee surgery last week.
The loss of Mack is a damaging blow to the Browns (3-2). He had played every snap of his NFL career (5,279) before he was injured blocking on a running play. Mack has been the anchor for Cleveland's steady offensive line, which has been the key to the team's early success.
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