On Monday, Antonio Brown reignited his feud with former teammate JuJu Smith-Schuster by calling him out with a tweet that's confusing even by pro athlete standards. You're free to take your own shot at understanding it all, but what can be easily discerned is that being called a "bum" and "Boo Boo Shoester" is not a compliment. Brown also appeared to be calling out Smith-Schuster's lack of production in a rougher-than-expected 2019 campaign, which ended on Sunday with Pittsburgh's 28-10 loss to the Ravens.