There were two minutes remaining, the Jaguars were clinging to a 29-20 lead, and the Tennessee Titans were driving. He had left the field a few moments before after taking a blow to the head from teammate Andre Branch but felt better.
He was ready to get back on the field, and he told the doctors and coaches that.
They said "no."
"I'm grateful that they're a lot more intelligent than I am," Posluszny said Wednesday. "They made the right call, 100 percent, and I'm glad that they did."
Posluszny had suffered a concussion and ended up not practicing at all last week and missing the Jaguars' home game against the Arizona Cardinals. He has been cleared to return to practice and said he plans on playing against Houston on Sunday.
He was a limited participant on Wednesday and said he was lucky that he suffered a minor concussion and could end up missing only one game. Reserve receiver Stephen Burton has missed six games this season because of two separate concussions and starting left guard Will Rackley has missed the last two games because of a concussion he suffered against San Francisco on Oct. 27.
"When people talk about concussion, the main thing you hear are horror stories about 'I blacked out. I don't remember anything. I can't look into light. I can't be around noise.' I didn't have any of those severe symptoms," said Posluszny, who was told not to attend the game and therefore missed the first home game of his seven-year NFL career. "So talking with our doctors and neurologists, they all said the same thing. They said, ‘[It’s] very minor. Let's be smart. You're feeling good.' So I wasn't overly concerned."
Even without Posluszny, the team’s leading tackler (88) and best defensive player, the Jaguars run defense was pretty stout against Arizona, holding the Cardinals to just 14 yards rushing. But the defense is certainly much better with him on the field.
"He is the quarterback of our defense," defensive coordinator Bob Babich said. "He can do a lot of things plus he’s been making a lot of plays, so it is good to have him back."