With this realization comes the fact that players decline as they get older.Although we as fans hate to see it we have to accept it and even embrace it because these men have worked their tail off and deserve to be mentioned as the top NFL players actively on the decline.Sometimes players decline quicker than others. We've all seen how the running back position is the most prone to quick declines http://www.giantsauthorizedshops.com/authentic-dexter-lawrence-jersey , as it's now become a regular occurrence to see a player's best days behind him in his late 20s, and running backs have even been retiring in their mid to late 20s. Sometimes linemen can fall victim to it too, as they are taking punishment on every play http://www.arizonacardinalsteamonline.com/zach-allen-jersey , while a receiver can suffer an injury and never be the same in route running or acrobatic catches.There is a large possibility that one (or more) of the players on this list completely prove me wrong and somehow improve this year.On that note, I have to say that this was a touch list to create and I know that some players were left off. Please feel free to leave a comment below with anyone I missed or your thoughts regarding our list of the top 15 NFL players actively on the decline. There’s been some handwringing this offseason about Chiefs quarterback Patrick Mahomes playing basketball, with the front office urging him to stop because they’re worried about injuries. Another AFC West team seems to feel differently.Chargers defensive backs Derwin James and Casey Hayward are playing basketball together this offseason Cullen Gillaspia Jersey , and the Chargers like what they see so much that they posted a highlight.It’s a pretty impressive highlight: Hayward lobs the ball off the backboard, and James goes way up to dunk, while the hapless guy they’re playing against Rock Ya-Sin Jersey , who looks like just an ordinary dude at a rec center, can do nothing about it.Perhaps the Chargers’ front office is going to urge the social media team not to post those highlights so as not to encourage James to keep playing, but more likely the Chargers are fine with some offseason basketball. And James certainly looks like he can play.