Wear the same colors, struggle against the same opponent, strive for the same goal—logic would dictate that teammates be mates (in the Australian sense, not the Darwinian one).
But there is one more thing teammates share that defenestrates the whole friendship thing: limelight.
While there is no "I" in team, there is one in "headline" and a pair both in "prime time" and "interview."
Make no mistake about it: Athletes are sportsmen and sportswomen, but they are also celebrities. And celebrities are notorious attention junkies.
If the Sports Illustrated covers displace Carmelos with Jeremys, Sanchezes with Tebows, Gordons with Johnsons, the letters in "mates" rearrange themselves into "steam." The kind that comes out of ears.
Click on to see 20 sets of current (or very recent) teammates who kind of hate each other.