It's still not easy to talk about. In fact, he really hasn't spoken about it.
"I hate losing," Beckham told ESPN on Thursday after the NFC's Pro Bowl practice, explaining his silence after the Giants' 38-13 playoff loss. "Whether it's marbles, spades, blackjack, whatever it is."
Beckham had a pair of dropped passes in the first quarter against the Packers and managed just 28 receiving yards -- the second-fewest of his career -- and was visibly upset after the game.
"You learn from it, you grow, you move on," Beckham told ESPN. "That's life. Life stuff happens. You get knocked down and you get back up. That's just always been my mentality. I'm not really fazed by anything. It's in the past. There's nothing I can really do about it now. You learn from it and you move on."
Beckham punched a hole in a wall outside the visiting locker room at Lambeau Field, sources told ESPN's Sal Paolantonio, who also saw Beckham banging his head against a door. Beckham hasn't admitted to or discussed either incident.
During Pro Bowl week, he has been one of the biggest attractions among fans, especially kids, who have flocked to him for autographs.
"Having fun, that's all I came here to do," said Beckham, who revealed in October that he "wasn't having fun anymore" playing football. In Orlando, he has appeared more relaxed during practices and took part in a skills challenge Wednesday that included fun contests like catching footballs dropped from drones 100 feet in the air.
"I think we do the same for each other," Beckham said. "We're always giving advice. I could probably look back in my texts and there were times when stuff's going down and I'll be like, 'Let's try and do this and be better at this.' We're always a work in progress.
"As you get older, you grow and mature and that should never stop. As soon as you stop growing, you're done living. I'll always be growing, forever learning, forever taking in advice from people I deeply respect."