I found other sources that say Cornell Green got 3 First Team ALL Pros and 1 Second team
Bold> Thanks for pointing this out because I love good mysteries! I was first surprised
pro-football-reference.com got something wrong. There is nothing (I found) explaining how they add up All-Pro awards. They should correct that.
Their site is pretty meticulous with its data, so I re-checked their page for Cornell Green (
link). First, I double-checked the all-pro tag (see #1 below). As I referenced before, PFR states Green got two first team all-pro selections.
Next, I checked his awards column for defensive performance (see #2 below). It corroborated his 1966 and 1967 first team
Associated Press selections but
not for 1971.
Then, I scrolled down to his page's All-Pro awards breakdown (see #3 below). It clearly lists Green receiving the AP's first team
All-Conference All-Pro award that year.
The obvious contradiction puzzled me for awhile. Why would PFR omit an award in its total when it recorded the AP giving Green three
All-Conference accolades? That's when a hypothetical answer popped into my head.
The NFL and AFL were two separate leagues before merging in
1970. For data purposes, it is likely PFR indexed the two leagues as conferences
even though they were not conferences. The site may have kept the same indexing parameter after the two leagues merged into one, combining the
American Football Conference and
National Football Conference.
This assumption required more confirmation and digging. I found All-Pro data for 1971 on Wikipedia (
link) and ProFootballArchives.com (
link). Wikipedia listed AP's first-team All-Pro cornerback picks as Jimmy Johnson (49ers) and Willie Brown (Raiders).
PFA's breakdown was more specific. It lists
All-NFL,
All-AFC, and
All-NFC teams. PFA's AP All-NFL
cornerback selections were Johnson and Brown--
along with All-AFC's Brown (again) and All-NFC's Johnson (again) and Green's teammate, Mel Renfro. Green
did receive AP recognition on its All-NFC team at
safety.
Sure enough, PFR lists double first team AP All-Pro selections for both Johnson (
link) and Brown (
link) for 1971! However, both players' award designations lists one as 'All-Conference' and the other as blank.
In summary, this is why I believe PFR recognizes Green's two out of three AP first team All-Pro awards. AP attributes his
league level awards for 1966 and 1967 but does not do the same for this
conference level (not All-NFL) award for 1971.