In an interview with NFL Media's Michelle Beisner after Sunday's game, Sherman displayed both apt analysis and then the superfluous potshot.
"I told him good job, good game, but he didn't give me nothing back," Sherman said. "I guess sportsmanship doesn't go both ways."
Looking at the postgame video, Sherman tapped Harbaugh and immediately jogged away, which didn't exactly give the coach a chance to show sportsmanship. It appears Harbaugh did say something back to Sherman as the cornerback jogged away. We're guessing Sherman didn't hear Harbaugh respond.
Harbaugh was asked in his postgame news conference what he said to Sherman.
"I didn't realize it was him until he was moving in the other direction," Harbaugh said. "He came up and patted me on the back, and I congratulated him and same with Doug (Baldwin), and I congratulate the Seahawks. They played a hell of a game."
The extra dynamic the former coach-player relationship brings to this rivalry at this point is like adding one too many packets of sugar to your already delicious morning coffee.