It's a good thing that Snapchat was invented, because if it wasn't, I'm not quite sure what Antonio Brown would be doing with himself this offseason. 

The Steelers wide receiver, who uses Snapchat pretty much nonstop, has stepped up his snapping game over the past week by adding a few interesting surprises. 

The first surprise came Monday when he somehow got NFL commissioner Roger Goodell to show up on his Snapchat. Although I'm not sure it counts as an NFL record, I'm pretty sure this was the first time that Goodell had ever showed up on an active player's Snapchat. 

Brown's Snapchat antics continued Wednesday when he decided to share a video that confused nearly everyone who saw it. In the video, Brown was catching passes from a jugs machine -- which is normal -- however, the weird part of the video is that Brown was catching those passes while wearing a Carolina Panthers helmet. 

This is what Antonio Brown looks like in a Panthers helmet.  Snapchat

Why does he own a Panthers helmet? Why was he wearing it to catch passes in his front yard? Who even took this picture/video of Brown?

The answer to all three of those questions is 'I have no idea,' and unfortunately, we'll likely never know why he decided to work out in a Panthers helmet. Here's another look of Brown in the helmet. 

Antonio Brown really seems to like his Panthers helmet.  Snapchat

The Steelers star didn't offer any explanation for the helmet in his Snapchat video, although he did eat pancakes with Terrelle Pryor in the video, so that was an interesting twist. 

For Panthers fans, the image of Brown wearing their helmet is just one giant tease because if any team could use him, it's definitely Carolina. 

For Steelers fans, you don't really need to worry about what helmet Brown is working out in because he's not going anywhere, anytime soon. The receiver signed a five-year, $73 million contract in February and is now under contract with the Steelers through the 2021 season. 

Update: We now know why Brown owns a Panthers helmet. He got an autographed helmet from Greg Olsen. 

However, that probably doesn't completely answer the question as to why he decided to wear the helmet to catch passes in his front yard. If Brown has ever seen The Sandlot, then he should know that you leave all autographed items in their case because if you don't then bad things happen.