Chess in "Bones"

The 9th episode in the 5th season of the popular TV series "Bones" opened with a discussion between the main characters Dr. Temperance 'Bones' Brennan and Special Agent Seeley Booth on what can be considered a sport. As usual, chess is pulled as one of the examples. Dr. Camille Saroyan also gets to state her opinion.

Booth: Fishing is not a sport.
Bones: But monuments to sporting events in ancient Egypt include fishing, as well as swimming and wrestling.
Booth: Come on, no sweat, no sport.
Bones: Boris Spassky at chess. He used to perspire profusely.
Booth: Why do you got to make things so complicated? Basketball, football, hockey... that's a sport. Board games, fishing... not a sport.
Bones: The International Olympic Committee is considering adding chess as a sport.
Saroyan: Not a sport.
Booth: See? Not a sport.
Saroyan: Neither is, ribbon twirling, bridge or synchronized swimming.
Booth: Synchronized swimming... that's not a sport, that's for sure.
Saroyan: God. I'm in the middle of something, aren't I?
....
Bones: Billiards is considered a sport by the International Olympic Committee.