When Michael Scott discovered that ex-girlfriend Jan Levinson was expecting a baby during the season 4 finale of The Office, she immediately hit him with another jarring revelation: he was not the father, though it’s obvious she had become pregnant while they were still together. Instead, she had visited a sperm bank.

Since we never found out who the sperm donor was, viewers came up with their own theories. Some thought the sperm bank story was a cover-up, and that Jan’s former assistant Hunter Raymond was the real father. After a deleted scene from season 5 revealed that Kevin Malone had donated sperm to that very sperm bank, fans pointed fingers at him instead.

As UPROXX reports, neither theory is true. On a recent episode of her Office Ladies podcast with co-star Jenna Fischer (who played Pam Beesly), Angela Kinsey (Angela Martin on the show) shared that the sperm donor’s identity was originally written into the scene.

“Jan says, ‘You have to pay top dollar, but it’s worth it. Now, here’s the best part. I got Andy Roddick’s sperm,’” Kinsey said. “And Michael says, ‘The tennis player?’ And Jan says, ‘Well, it’s a little more than that. He’s the sixth-ranked player in the world and he’s won four grand slams.’ And Michael says, ‘That’s a lot of grand slams, I guess.’”

As for why the tennis star got a shout-out, Fischer has a theory. She explained on the podcast that Roddick was a big fan of The Office, and that he also happened to be friends with Rainn Wilson (Dwight Schrute). He even stopped by the set at some point. “I have to imagine that the reason they wrote it as being Andy Roddick's sperm was a little bit of a nod to Andy, who has an amazing sense of humor,” she said.

For whatever reason, that bit of dialogue didn’t make it into the scene, robbing us of the possibility that Roddick himself would, at some point, turn up on the show.

[h/t UPROXX]