Seahawks head coach Mike Macdonald said that Clark will be out for "multiple months" after fracturing his right ankle in Sunday's 19-16 preseason loss to Tennessee, Brady Henderson of ESPN.com reports.
A rookie second-round pick, Clark had been working with the Seahawks' second-team defense for most of the summer but entered the starting lineup Sunday while Macdonald rested most of the team's usual starters. Clark ended up playing just one snap, as he was carted off the field on the Titans' opening drive and was later fitted for an air cast. With a multi-month absence on tap for Clark, he'll likely be moved to injured reserve prior to Week 1 and will hope to return at some point in the second half of the season.