Lucas Matthysse entered 2013 as already one of the hottest and most popular fighters in boxing. In January, he knocked out well-regarded Mike Dallas in the first round. In May, he followed up with a brutal, Round 3 TKO of IBF light welterweight champion Lamont Peterson.
There's a strong argument to be made that this was enough to earn him a place in the pound-for-pound rankings. I doubt many knowledgeable fans would rank him outside of their top 20, and I would hardly scoff with derision at anybody placing him in their top 10.
Peterson had been in the ring with many of the sport's top stars and had never been chewed up and spit out the way he was against the rugged Argentinian.
So Matthysse is clearly knocking on the door now, if not already standing inside the room. Convincing wins over any of the following fighters should make him a universally acknowledged, pound-for-pound top 10.