Josh Hamilton may be the biggest name on the free agent market, but some teams are concerned about his past of injuries and substance abuse.

Initial reports were that Hamilton wanted a seven-year, $175 million deal.

"As long as you have his support system in place, he'll be fine. His performance by the end of the season is always superb. He's one of the top two or three players in baseball, and there's no way you can dispute that," said someone close to the slugger.