Swearinger told The Palm Beach Post on Saturday night that he dove low to avoid a blow to Keller's head, in accordance with league rules, saying: "In this league, you've got to go low. If you go high, you're going to get a fine."
Hartline on Tuesday called the explanation "crap."
"I think that, me personally ... (what) you're telling me is, 'Oh, I'm still worried about going high or hurting the head,' " Hartline told WQAM-AM. "So you consciously went low then, is what you're trying to tell me."
Said Hartline: "I'm not a defensive player, so I don't sit here and assume right off the bat. But what I do know is that I have a lot of good pros on my team and, from what they have said to me, is that (there) is no place for that in the game today."
Hartline, understandably, isn't happy about losing a teammate, but Swearinger has been contrite about the tackle that ended Keller's season. Today's players are preached at to avoid hits to the head, and the NFL has gone all-in to prevent and treat concussions.
Hartline isn't required to agree with Swearinger's thinking, but judging the safety's intent on the play is, at best, a gray area.