He is mentioned now and then in various places and books, I think he is mentioned quite a few times in Kasparov's greatest predecessors.
But there are some strong players, top 5, that, due to not being very exciting persons, not having the most exciting playing style, and frankly, due to not being American or (in the old days) USSR, isn't mentioned as much. Ulf Andersson and Mecking are two good examples of this.
Since I became interested in chess, I've heard the name of Henrique Mecking (aka "Mequinho") as the greatest brazilian chess player ever. He was a serious contender for the world title in the 70's and was at a point ranked third in the world, behind the likes of Karpov and Korchnoi.
Unfortunately, in the late 70's, towards the zenith of his career, he contracted a serious disease that apparently is yet to be correctly diagnosed. He was about 27 years old then and was impaired throughout the 80's, exactly at the period he should be on his peak performance. He came back to chess in the 90's but, while still a strong 2500 GM to this day, he was not able to get back to the top tier of super GMs.
I was wondering how Mecking stands internationally, since I've never seen him being mentioned here (chess.com is where I do pretty much all my chess-related reading). Wikipedia says he was compared to Bobby Fischer as a teenager prodigy, but he obviously got much less attention thean the american champ. My question goes specially to the guys who study chess books: is he mentioned often as an elite player? What do you think of his games?
Here's a sample game he won against Korchnoi, against whom he had a flattering +2 -5 =12 score: