The powerful back row shone in the 29-18 win over Rotherham Titans in the club's opening pre-season game on home soil.
However, Ryan revealed, in terms of captaincy, several players would lead the team during the friendly games.
"JT is a good leader and he showed he is also a pretty good player. A couple of people will share captaincy during pre-season and then I will have to make a decision," he said.
"I am never as over focussed on the captain as the media are. I tend to see three or four people who make those decisions and lead the team.
"It's obvious that JT is one of them, he is a natural leader and for a lad who has been ten years at one club that was quite a marker to put down in his first game. I am delighted for him."