Scroll to see Becks in the video
In the new clip, the football icon appears opposite Sir David Jason and Nicholas Lyndhurst in the one-off special for Sports Relief.
The duo ask Beckham why he’s wearing glasses, to which he replies with a Del Boy-esque line, incorrectly saying they help him go “incognitive” rather than “incognito”.
In another teaser trailer released earlier this week, Beckham jokes that he would go out into the high street wearing a sarong if Del Boy improbably asked him to.
Last week, the former Manchester United player said he “lost sleep” with nerves about his appearance on the famous BBC sitcom.
The 38-year-old said he was surprised to have been given so much dialogue, telling the Radio Times: “The day of filming started off with a slightly sleepless night, going over my script.”
The Sports Relief special will reunite market trader Del Boy (Sir David Jason) and Rodney (Nicholas Lyndhurst) for the first time in a decade.