Shawn Chacon was put on waivers Thursday by the Astros, a day after he got into a altercation with GM Ed Wade, according to an Associated Press report. If another team doesn?t claim Chacon by Monday, the Astros say they will release the pitcher and terminate his contract for cause, which would set off a confrontation with the players? association over the nearly $1M that would remain on Chacon?s deal.