The Miami Dolphins are in the process of finalizing a four-year contract extension for linebacker Koa Misi, according to FOX Sports. Misi, 26, is a 6-foot-3, 254-pounder from Utah entering his fourth NFL season. Last season, he recorded 65 tackles, 3 1/2 sacks and two forced fumbles. For his career, he has 140 tackles, nine sacks and five pass deflections. Source: National Football Post