Brandon Gibson immediate knew something was wrong the second he jumped for a high pass from Ryan Tannehill in the first-quarter of Sunday's 27-17 loss. The Miami Dolphins' slot receiver felt a sharp pain in his left minute and later learned he had suffered a season-ending injury. “They said it doesn’t look too good, so it doesn’t look good," said Gibson, who caught a 4-yard touchdown pass in the opening quarter. "I'm going to keep my head up and try to have the best attitude." Gibson, a major free agent addition, left the Dolphins locker room walking with the assistance of crutches. He'll undergo an MRI on Monday to identify the exact extent of his knee injury. But it is believed he suffered a ligament tear.