Yep, he's not on like a free fall yet, but the signs are there. 34 in december, a large number of fights to his name, visible signs he's not quite as fast as he once was, and seems to be getting stunned by strikes a tad easier(whether that be his chin degrading, or just not getting out of the way of the brunt of the impact as well being slower). With the way Rob likes to strike darting in and out with his hands mostly down it's a pretty safe assumption his best days are behind him. But it does seem like he still has enough left in the tank so far to put up some decent fights, just very unlikely to ever do so at championship level again.