Tennessee Titans QB Marcus Mariota (leg) took part in the first 10 organized team activities Tuesday, May 23. He did everything in the walkthrough, individual drills and in 7-on-7 drills. “It felt great,” Mariota said after practice. ‘Four months ago I wasn’t sure I was going to be able to participate in OTAs, and being able to do some of the drills,’ Mariota said. ‘I was very happy and very grateful. It was fun to be out there with the guys, and I enjoyed it.’