After two loan spells with AC Milan, Beckham may have thought the thrill of Champions League nights were behind him when he played in the bright Californian sunshine for the LA Galaxy.
Now, at nearly 38, he has another chance.
"It never gets old, and coming up against players like we're going to be coming up against on Tuesday is going to be special. Champions League nights are always special nights, and I'm excited to be part of it," he said. "Obviously, I've come up against Barcelona a few times for United and obviously a few times for Madrid.
"It's going to be special, it's always great playing against teams like that because you try and put yourself against the best teams and the best players. They're definitely the best."
Inspired by superstar Lionel Messi, Barca proved its pedigree again when it routed Milan 4-0 in the return leg of their last 16 match, sending out another strong message to the rest of Europe after winning the competition twice in the past four seasons.
"You saw in the last round where Milan won the first game 2-0 and people were talking about Barcelona's era being over. But anyone who knows them as a team and as individuals and players knew that's not the case," Beckham said. "Because they're not just about individual talent, they're about a team network and they've been like that for years. That's why they've had the success they've had."