A mixed martial arts fighter who was born with an underdeveloped left arm checked in with a group of Marines and other troops who lost limbs in combat. Nick Newell, a World Series of Fighting lightweight star, visited with members of “Operation Warrior Reconnect,” the Los Angeles Times reported. He met with the troops last Wednesday in Camp Pendleton, Calif., and was humbled by their appreciation of him. “What they’ve done is way more fantastic, more brave, than anything I’ve ever done,” Newell told the LA Times. “Sacrificing your life for our country, that’s something.” The 27-year-old MMA fighter was born…