Lamar Odom reportedly ''knew'' Khloe Kardashian was going to file for divorce.

The reality TV star had decided to end her four-year marriage to the basketball star due to 'irreconcilable differences' and it is said while the basketball player was preparing for the worst, he was hoping to repair their relationship.

A source told E! News: ''He's deeply saddened by Khloé filing for divorce.

''He knew it was coming and it was only a matter of time. He felt like he gave his all to try and save the marriage, but ultimately he wasn't able to.''

Their relationship had fallen apart after recent rumours he cheated on her with multiple women and is battling a cocaine addiction.

Although he has apparently accepted her decision, he will reportedly ''always love her''.

The insider added: ''There will always be a place in his heart for Khloe.

''He will always love her and her family. She has decided and there is nothing more he can do. He has to accept that.''

It was previously reported the decision to end their marriage was a ''recent'' one, and she too was hoping their could save their romance.

A source had revealed: ''It was a recent decision. She's been holding out hope but she has to look out for herself.''