Worlds collide!

In an Extra TV interview airing Thursday, Bachelor star Jake Pavelka speaks wistfully of the departed Ali Fedotowsky... while dancing with one of Tiger Woods' most famous mistresses.

As reported Wednesday, former NYC club hostess Rachel Uchitel -- the first woman to be linked to Woods in November 2009 -- landed a paying gig as a correspondent on Extra.

For one of her first appearances on the syndicated entertainment show, she goes salsa dancing with Pavelka.

One of Uchitel's questions for the man of the hour: "When Ali went home, was she going to be one of the girls you kept?"

"Yes," Pavelka replied. "Ali was going to get a rose that night."

On the Feb. 8 episode, Fedotowsky, a 25 year-old advertising accounts manager, abruptly left the show, explaining that her employer threatened to fire her if she remained on the reality competition. On the show, Pavelka said he was "heartbroken" to see her leave.

Fans were instantaneously devastated about Ali's decision. "If you can, you need to return," one fan pleaded. "It has always been you from the first date, yes, from [the] first date. You and Jake have always looked natural together; the others all look contrived...."