Is this the shortest contract in Professional sports ... ???

[MindMover]

After Signing With Nets, Jason Collins Becomes First Openly Gay N.B.A. Player

LOS ANGELES — Jason Collins, a 35-year-old N.B.A. center who announced last year that he was gay, has signed a 10-day contract Sunday to join the roster of the Nets.

http://www.nytimes.com/2014/02/24/sports/basketball/after-signing-with-nets-jason-collins-becomes-first-openly-gay-nba-player.html?hp

[Renew Deal]

1. Jeremy Lin was initially signed to a 10 day contract

I don't know about this situation but it usually has to do with the salary cap

[Downwinder]

2. Eddie Gaedel's contract was signed on the 17th and voided on the 21st.

https://en.wikipedia.org/wiki/Eddie_Gaedel

[GoCubsGo]

3. I think this one was a bit shorter...

http://espn.go.com/nhl/story/_/id/7275103/minnesota-wild-sign-51-year-old-practice-goalie-emergency-backup

[mythology]

4. It's a standard NBA contract

A player can be signed to two 10 day contracts and then either released or signed for the rest of the season.

It's to cover an instance where a player has a sprained ankle or some other short term injury.

[KamaAina]

5. Not even in the NBA

That honor goes to Kevin Grow of the Sixers, who has Down syndrome and was signed on a two-day contract.

http://espn.go.com/nba/story/_/id/10473641/kevin-grow-signs-two-day-deal-philadelphia-76ers

He couldn't possibly make the Sixers any worse.

[Fantastic Anarchist]

6. Mike Modano signed a one day contract for $999,999.00 (9 for jersey number)

So that he could retire as a Dallas Star.

The greatest American born hockey player's #9 jersey will be retired by the Dallas Stars on March 8th of this year.