Kris Humphries is seeking an annulment of his marriage to Kim Kardashian.
The basketball star was shocked when the socialite filed for divorce after just 72 days of marriage at the end of last month, but is reportedly planning to hit back at her paperwork with a petition to seek a legal separation, sources told People magazine.
It appears he has had a change of heart as Kris, 26, had originally agreed to sign divorce papers when Kim, 31, flew out to Minnesota for showdown talks, though the sportsman's father says he was "blindsided" by the legal action.
William Humphries said: "There was never a discussion about it—it just came out of nowhere and blindsided Kris.
"How could someone do that? Kris was completely surprised. The news was already published before he found out.
"Kris is hurting, but we're here for him. It's not a nice situation."
It was also recently claimed that Kris had hired lawyers because he was unhappy with how he is going to be portrayed in reality TV show Kourtney & Kim Take New York.
A source said: "Kris has a legal team investigating his options. He's claiming his role on Kourtney & Kim Take New York is bigger than he was told, and that's why he wants more money. But Kris is also suing because he's really worried about how badly he's going to be portrayed on the series."