Mack was waived by San Francisco on Friday, Matt Maiocco of NBC reports.

EDGE Analysis

Mack was signed by the 49ers as an undrafted free agent during this offseason, but failed to retain a roster spot just over a week into camp. Over five college seasons, the 6-foot-2 receiver tallied 161 receptions, 2,369 yards and 12 touchdowns, playing for Indiana his freshman year and Pittsburgh the next four.