“There’s no ‘I’ in ‘team’” is a popular saying about teamwork, first cited in 1960. “There is no ‘I’ in team, but there is in win” is a sports saying that has been printed on many images. “There’s no I in TEAM, but there is in WIN!” was posted on the newsgroup alt.overlords
 
The “I in win” saying has been credited to basketball superstar Michael Jordan since at least 1999, but there’s no evidence that he was the first to say it.
 
     
Google Groups: alt.overlords
the gulf war
Anthony W Erwin
2/15/92
(...)
“There’s no I in TEAM, but there is in WIN!”
by Brett Gibson    
   
13 June 1996, Phoenix (AZ) Gazette, “Musings” by Kimberly Crockett, pg, B5:
...“I” in team. And while he may quip there is an “I” in win, that’s only for individual ...
     
Google Groups: alt.sports.basketball.nba.boston-celtics
Iverson’s playing for himself
James Gardner Wheaton
4/17/97
(...)
There’s also an I in win.
 
Google Groups: alt.sports.football.pro.sf-49ers
Rice: “Maybe it’s time I moved on…”
BenF802961
11/24/98
(...)
There is no “I” in team but there is in win. 
    › 
Google Groups: alt.zines
Inspiration!
Cali Ruchala
8/2/99
(...)
There is no I in team, but there is an I in win.
     
Google Groups: alt.sports.hockey.nhl.sj-sharks
A monumentally stupid pair of moves
Max Chuang
8/5/99
(...)
> And there have been many great atheletes in all sports that have
>failed at the pro level due to poor attitutes and failing to understand
>that there is no I in Team.
 
But as Michael Jordan used to say, there is an I in Win.
 
Google Groups: rec.arts.marching.colorguard
TIE!!!!
Guard Chickie
8/15/99
(...)
*There is no I in TEAM and no ME in WIN but there is an I in WIN and a ME in TEAM.*
 
Google Groups: alt.music.prince
OT : The Weakest Link : there’s a I in “team”
CoolBrz410
7/31/01
“There is no ‘I’ in ‘team’, but there is one in ‘win’——taken from the ultimate competator, Michael Jordan.
 
Google Books
The One Thing You Need to Know:
... About Great Managing, Great Leading, and Sustained Individual Success
By Marcus Buckingham
New York, NY: Free Press
2005
Pg. 95:
The old cliché states that “there is no ‘I’ in TEAM.” But as Michael Jordan was once quoted as saying, “There is in WIN.”
 
Twitter
Shel Holtz‏
@shelholtz
Replying to @ikepigott
@ikepigott Oh, no! Not the “I” and “me” thing. Here’s one: There is no “I” in team, but there is in “win.” Okay, everybody groan in unison.
12:46 PM - 27 Feb 2008
 
Google Books
Applying College Sports in a Professional Career, Action Edition
By VLocker Room
VLocker Room, LLC
2010
Pg. ?:
“There is no ‘i’ in team but there is in win.” - Michael Jordan
 
Google Books
Winning People,
Losing America: You’Ll Never Look at Religion, Politics, and Football the Same Way Again!
By C. Coliér McNair
Xlibris (Xlibris.com)
2017
Pg. ?:
Michael Jordan once said, “There is no i in team but there is in win.” Jordan’s right!