Steelers lose massive special teams player to season ending injury Pittsburgh Steelers punter Cameron Johnson suffered a season ending knee injury Johnston was also the holder for kicker Chris Boswell Johnston had joined the Steelers this offseason signing a three-year 9 million contract he originally entered the NFL as an undrafted free agent in 2017 joining the Philadelphia Eagles he made the Eagles roster for the 2018 season and made his NFL debut in the season opener