Pistons forward Tayshaun Prince has missed the team's last 26 games with a small ruptured disk in his lower back.
However, he was a full participant in practice on Saturday and could be in the starting lineup on Sunday against the Raptors.
"It's sore as usual, bumps and bruises trying to get back in the first practice," said Prince. "But it felt good.
"Sometimes you think it's a lot of pain, but it's more soreness after I started working out."
The Pistons are hoping to get Richard Hamilton, who has missed five games with a pulled right hamstring, back as well.