While we don’t know for sure, the Pittsburgh Steelers are probably going to be without two of their top three tight ends Saturday when they play their third preseason game of 2018 at Heinz Field against the Tennessee Titans. On Tuesday, however, Steelers general manager Kevin Colbert was asked to talk about what people should expect out of the team’s tight end group in 2018 during an interview on the ‘Fantasy Alarm Show’ on SiriusXM Fantasy Sports Radio and after first recapping the injuries that Vance McDonald and Xavier Grimble are currently dealing with, he indicated that he believes both should be ready for the start of the regular season.