Kanye West has reportedly been pushing Rob Kardashian to lose weight this 2015, according to the latest news report.

The report claimed that Kanye West has been "motivating" Rob Kardashian to work out and eat right to increase his chances of a 2015 television comeback.

"It's Kanye working his magic," a source told Us Magazine as published in its latest news report about the rapper.

"He's been a great motivator for Rob. He told Rob how he got into shape after his accident and at a time when he was down in his life."

According to Hollywood Life, the motivation seems to have worked because Rob Kardashian has reportedly lost 15 pounds.

This latest news report may paint Kanye West as a good brother-in-law to the former "Keeping Up With The Kardashians" star. But is there a possibility that the reason he's helping Rob is to compete with another man who was previously part of the Kardashian family?

Kanye West may not be the only brother-in-law who thought of helping Rob get into shape.

According to previous news reports, Lamar Odom also wanted to get back into his NBA physique before 2015 ends, and he allegedly encouraged Rob Kardashian to take the challenge with him.

"Lamar and Rob had a special bond when Lamar was married to Khloe and Rob was crushed when they got divorced, but that brotherly love never went away," an insider previously told Dish Nation.

According to the insider, Rob Kardashian's sister and Lamar Odom's ex-wife, Khloe Kardashian, approves of the former NBA player's idea.

After all, both Rob Kardashian and Lamar Odom have been through a lot these past few years, and 2015 could be the year they both get up from the slump.

"Khloe is 100 percent on board with Lamar's plan. She adores her brother and knows how much he loved Lamar," the source added.