49ers' Anthony Davis and Rams' Chris Long Trade Shots on Twitter

NFL players don't need bulletin board material to get pumped up for division games, but two NFC West players now have extra motivation when their teams play against each other next season.

Offseasons are long for everyone, so players have to find a way to stay busy. Twitter is one way for them to pass the time. The latest Twitter feud featured San Francisco 49ers offensive lineman Anthony Davis and St. Louis Rams defensive end Chris Long.

The 2010 first-round pick started the war of words with a simple tweet and an Instagram photo:

Long, who was a first-round pick in 2008, didn't take too kindly to being called out:

Long finished last season with 8.5 sacks.

The feud continued from there:

via @JOEL9ONE

via @AnthonyDavis76

via @AnthonyDavis76

via @AnthonyDavis76

It's important to remember that the Rams and the 49ers play twice next season.

[Anthony Davis, Chris Long; h/t FOX Sports]