I was gutted Ricky lost (especially after staying up 'til almost 6 to hear it all!) but...if you're going to lose to anyone, a boxer with the talent of Mayweather is no shame.
I do disagree with Lewis too, although I take his point that it's not just the loss, it's the punishment Ricky has taken along with his victories. And there were already retirement rumours.
But I think Ricky can carry on for another year, two at the most, so long as it's at light-welter.