Hunslet have signed centre Anthony Boardman on a one-year deal from National Conference League side Dewsbury Moor.
The 30-year-old has been snapped up by Hunslet after impressing in recent pre-season trials against Bradford and Batley.
Thornton said: “It’s really pleasing when you get someone coming in and looking for an opportunity to prove themselves, and that’s exactly what AJ has done.
“He has worked really hard in the pre-season, showed up well in training and the warm up games, and has earned his opportunity to play at a higher level, and deservedly so.
“There is some talent in the amateur game and the way AJ and Danny Rowse have adapted is proof of that. He has slotted into our group really well and has quickly become a popular member due to his hard work in training and committed efforts on the field.
“He is an honest and hard-working lad and realises he still has a lot to learn, but his willingness and eagerness to be better and improve himself means he will be a valuable asset for us in both wing and centre positions.”