Personally I don't think this is all that bad, both boys are the same age, Grigg is 190cm and 84kgs, Collins 187cm and 80kgs, both will grow fill out but Grigg has the build to be alot bigger. Collins hasn't cemented his place in our side, had a good last quarter against the Swans and everyone fell in love with him. Still along way to go for Collins. I think Grigg is mentally and physically ahead of Collins at this time. I would support the trade if it is in fact true.