Lamar Odom is seen leaving a work out in Sherman Oaks, California on Saturday

It appears the stress of his pending divorce with Khloe Kardashian is getting to him as Lamar Odom was spotted sporting a noticeably larger gut on Saturday.

Although he was coming back from a workout in Sherman Oaks, the 6 ft, 10 in basketball player appeared to be heavier around his mid-section compared to his normally much- leaner frame.

As he walked, he looked tired and out of breath.

Working up a sweat! Lamar Odom is seen leaving a work out in Sherman Oaks, California on Saturday

Carrying a couple of sweatshirts over his left shoulder, the 34-year-old was wearing a blue long-sleeve shirt, which was tucked into a pair of shorts.

Perhaps he is feeling the strain of his on-going, public divorce from Khloe, who is reportedly beyond frustrated with him as he continues to drag his feet when it comes to signing divorce papers almost five months after she filed to dissolve their marriage.

Packing on the pounds? The basketball star appeared to be a bit heavier around his mid-section when compared to his normally much- leaner frame

Despite the star making every effort to move on, happily flaunting her new relationship with French Montana, RadarOnline reports that she's not fully able to enjoy her romance or immerse herself in it with the situation still hanging over her head.

In May, Khloe tweeted 'It still hurts... Maybe it always will.'
'While Khloé is very happy with French - because he treats her like a queen - she isn't fully able to enjoy it because Lamar still hasn't submitted a response in their divorce proceedings,' a source told the website.

Feeling the strain? Lamar looked tired and out of breath as he walked

Letting her hair down in recent months after a stressful and draining time as her marriage crumbled last year, the reality TV star was apparently overheard saying 'how much fun she was having with French' as the two took in the Floyd Mayweather Jr versus Marcos Maidana boxing match in Sin City on May 3 before hitting up the Rehab pool party at the Hard Rock Hotel the following day.
'It has been ages since Khloé has been going to clubs and just having fun,' the source adds in approval.
The statuesque blonde began divorce proceedings on December 13, calling time on her four-year union following allegations of infidelity and drug use on the professional athlete's part.
While Lamar is yet to move on in the relationship department, he recently signed with the New York Knicks after his career took a battering last year amid reports of a dangerously out-of-control drug addiction.

Dragging on! According to reports, Lamar hasn't signed the divorce papers yet, almost five months after Khloe Kardashian filed the papers

A lean machine! Lamar is seen reacting during a Los Angeles Lakers game against the New Orleans Hornets in Game One of the Western Conference Quarterfinals in the 2011 NBA Playoffs at Staples Center on April 17, 2011 in Los Angeles, California

Time to move on: Lamar and Khloe are seen at the 19th Annual Race To Erase MS fundraiser held at the Hyatt Regency Century Plaza in Los Angeles on May 18, 2012