Lions linebacker Stephen Tulloch left Sunday's game against the Packers in the first quarter after injuring his leg while doing the "Discount Double Check" celebration after sacking quarterback Aaron Rodgers.
On Monday, Detroit put Tulloch, who had 93 tackles and two sacks in 2013, on injured reserve with a torn ACL, meaning he'll miss the remainder of the season.
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While there have been other instances of players getting injured while celebrating (hello, Bill Gramatica!), Lions coach Jim Caldwell's take on Tulloch was a big of a head-scratcher.
''I haven't had a chance to discuss it with him in detail, but obviously he's been disappointed," Caldwell said. "He's a fighter, so expect him to rehab like he always does everything else: full go and he'll get back soon.''
Caldwell would not speculate on exactly how the injury occurred, instead pointing to the fickle nature of the game.
''The obvious was everybody saw him go up and come down and get up limping afterward,'' Caldwell said. ''But often times, some of these injuries, things happen a couple plays before, but maybe at a certain point in time it may be affected a little bit more than others and come to the forefront. So I'm not absolutely sure.''
Caldwell said he won't ask his players, or coaches, to relax on the celebrations.
''Oftentimes you're trying to defeat two to three people to get something, and when it does indeed happen, a guy lays it on the line, gives everything he has, it's kind of an emotional reaction, '' he said. ''We want enthusiasm, we want our coaches to be excited about it, we want our players to be excited about it.''
The Associated Press contributed to this report.
