He is one of the all-time greats. I never doubted his strength. Tyron is always in great shape. But watch him play against NFL DEs and you can see he has lost a little lateral quickness. I remember the end of Larry Allen's career with Dallas. He was still strong as an ox, but his feet were not as quick and he struggled with quicker DTs. Larry Allen was the greatest OG I have ever seen and there have been a lot of good ones in my 50+ years of watching football. Father time wins the war against everyone.
Tyron is young still but he has had a fair share of injuries, especially to his back. Back problems do not go away. There is no operation to heal them either. They can operate to relieve the pain but there is usually a tradeoff, like flexibility or mobility. I really hope Tryon can recover some of his quickness, but I am being realistic when I do not expect it. When Tyron retires or is released by the Cowboys, it will be a huge loss for the team. There are not many LTs as good as he was. But it is going to happen and its going to happen sooner than we'd like.