Timberwolves forward Al Jefferson says that he is close to full strength following last season's knee injury.

"I think I'm 90 percent, I really think I can do contact work," Jefferson told the Star Tribune. "I know for a fact that I will be ready for training camp. I will be 100 percent, nonstop, I'll go two-a-days."

Jefferson averaged 23.1 points and 11.0 rebounds in 50 games last season before his season was cut short with the injury.