Lamar Odom determined to fight for marriage

Reality TV star Khloe Kardashian's estranged husband is refusing to give up on their marriage even though she has filed for divorce.

The Keeping Up With the Kardashians beauty split from basketball star Lamar Odom last year (13), after uncovering the details about her husband's substance abuse issues, and she has since filed for divorce.

Odom jetted off to Spain to play for the Baskonia basketball team as his marriage fell apart, but now he's back in the U.S. undergoing physical therapy for a back injury - and he's determined to fight for his marriage.

He tells In Touch magazine, "I want to make it work with Khloe... I'm going to see Khloe. I'm going to see her soon."

And insiders tell the publication his estranged wife is open to his efforts.

One source says, "He confessed his feelings and cried his heart out to her on the phone. She'd been avoiding his texts and calls for weeks, but when she heard him pleading with her to take him back, she melted."