Carrie Underwood Defends Her Trainer Against Cyber Bully

— -- Careful what you say about Carrie Underwood's friends.

When her trainer Erin Oprea was cyber bullied after her son's soccer game, the country singer leaped to Oprea's defense.

It all started Saturday, when Oprea got in a cardio workout while watching her son's soccer game. That's when another parent, an unidentified man, snapped a photo of her jumping rope and posted it to Facebook, along with the message, "Would it be wrong of me to tell her that every dad at the soccer field thinks her standing out front with her jump rope for two hours only screams she wants attention. And I can only imagine what the soccer moms are thinking."

Underwood was quick to defend her friend. Posting a screenshot of the original Facebook post, the singer wrote, "That man obviously has a big problem...with himself. I only hope he can learn to like himself someday so he can be an adult and stop bullying others for bettering themselves!"

Underwood added: "This guy felt the need to post this pic of my friend and trainer, Erin Oprea, along with some really insecure and mean comments. He was shaming her for getting in some exercise during her son's soccer game. Not cool."

Oprea had some words for the soccer dad on her website.

"This is exactly why many people don’t embrace an active lifestyle in ordinary situations: They are worried that they will draw attention and, even worse, ridicule," the former Marine wrote.

"Everyone has to find time in their busy schedules to get their workouts in. This is a time that works well for me and many other parents," she continued. "I don’t want to see people getting bullied for doing what works best for their lifestyle."

She concluded by encouraging others not to care what others think.

"So grab your jump rope, embrace that healthy lifestyle and keep on jumping if you hear whispering behind you," Oprea said. "You’re the better person here in more ways than one."