There are times when you just have to say thank you for your service.It would appear some don't have the decency to do that.To be expected.
Agreed, Kevin Sinfield is a bit like Andy Farrell was in that he is an outstanding leader and player for his Club in Super League and another modern era player who due to the change in seasons was never able to test himself in the NRL during the northern hemisphere off season.
It could be argued that Kevin was found lacking at international level against NRL standard players but he is certainly not alone in that respect. He never gave less than 100% when wearing an England / Great Britain shirt and really that is all as a fan you can ask for.
His retirement from the International stage is a dignified exit as befits a model professional on and off the field