Dixon was put under intense pressure by the victorious Leeds team that day, and he endured an afternoon to forget in the capital.
Since then, though, he has played magnificently during Rovers’ Qualifiers campaign, and bagged four tries and a conversion against Bradford on Saturday.
“Credit to Kieran too, he didn’t have the best performance at Wembley, but he’s come out and backed himself over the last couple of weeks,” Sio told Hull KR TV.
“He’s been scoring tries and your hard work pays off when you get Man of the Match.”
Sio himself has been lining up at full-back in the last couple of games, as Dixon has moved onto the wing.
The former Parramatta man is enjoying the freedom the role offers.
“I’m enjoying it big time. It’s kind of like playing backyard footy again, you have a lot of space when you catch the ball and see what you can do,” he said.
“For me, I’m just happy to be doing my part for the team and getting my name on the scoreboard is a bonus.
“I’m enjoying my footy every time I take to the field and in training as well and overall the club in general, the boys who are here and the coaching staff are making it very happy for me over here.”